21729708

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:114

約数の個数: 240

約数和(自身を含む): 77409024

約数和(自身を除く): 55679316

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 27, 28, 33, 36, 39, 42, 44, 52, 54, 63, 66, 67, 77, 78, 81, 84, 91, 99, 108, 117, 126, 132, 134, 143, 154, 156, 162, 182, 189, 198, 201, 231, 234, 252, 268, 273, 286, 297, 308, 324, 351, 364, 378, 396, 402, 429, 462, 468, 469, 546, 567, 572, 594, 603, 693, 702, 737, 756, 804, 819, 858, 871, 891, 924, 938, 1001, 1053, 1092, 1134, 1188, 1206, 1287, 1386, 1404, 1407, 1474, 1638, 1716, 1742, 1782, 1809, 1876, 2002, 2079, 2106, 2211, 2268, 2412, 2457, 2574, 2613, 2772, 2814, 2948, 3003, 3276, 3484, 3564, 3618, 3861, 4004, 4158, 4212, 4221, 4422, 4914, 5148, 5159, 5226, 5427, 5628, 6006, 6097, 6237, 6633, 7236, 7371, 7722, 7839, 8316, 8442, 8844, 9009, 9581, 9828, 10318, 10452, 10854, 11583, 12012, 12194, 12474, 12663, 13266, 14742, 15444, 15477, 15678, 16884, 18018, 18291, 19162, 19899, 20636, 21708, 23166, 23517, 24388, 24948, 25326, 26532, 27027, 28743, 29484, 30954, 31356, 36036, 36582, 37989, 38324, 39798, 46332, 46431, 47034, 50652, 54054, 54873, 57486, 59697, 61908, 67067, 70551, 73164, 75978, 79596, 81081, 86229, 92862, 94068, 108108, 109746, 114972, 119394, 134134, 139293, 141102, 151956, 162162, 164619, 172458, 185724, 201201, 219492, 238788, 258687, 268268, 278586, 282204, 324324, 329238, 344916, 402402, 417879, 493857, 517374, 557172, 603603, 658476, 776061, 804804, 835758, 987714, 1034748, 1207206, 1552122, 1671516, 1810809, 1975428, 2414412, 3104244, 3621618, 5432427, 7243236, 10864854, 21729708]

約数ペア:

[(1, 21729708), (2, 10864854), (3, 7243236), (4, 5432427), (6, 3621618), (7, 3104244), (9, 2414412), (11, 1975428), (12, 1810809), (13, 1671516), (14, 1552122), (18, 1207206), (21, 1034748), (22, 987714), (26, 835758), (27, 804804), (28, 776061), (33, 658476), (36, 603603), (39, 557172), (42, 517374), (44, 493857), (52, 417879), (54, 402402), (63, 344916), (66, 329238), (67, 324324), (77, 282204), (78, 278586), (81, 268268), (84, 258687), (91, 238788), (99, 219492), (108, 201201), (117, 185724), (126, 172458), (132, 164619), (134, 162162), (143, 151956), (154, 141102), (156, 139293), (162, 134134), (182, 119394), (189, 114972), (198, 109746), (201, 108108), (231, 94068), (234, 92862), (252, 86229), (268, 81081), (273, 79596), (286, 75978), (297, 73164), (308, 70551), (324, 67067), (351, 61908), (364, 59697), (378, 57486), (396, 54873), (402, 54054), (429, 50652), (462, 47034), (468, 46431), (469, 46332), (546, 39798), (567, 38324), (572, 37989), (594, 36582), (603, 36036), (693, 31356), (702, 30954), (737, 29484), (756, 28743), (804, 27027), (819, 26532), (858, 25326), (871, 24948), (891, 24388), (924, 23517), (938, 23166), (1001, 21708), (1053, 20636), (1092, 19899), (1134, 19162), (1188, 18291), (1206, 18018), (1287, 16884), (1386, 15678), (1404, 15477), (1407, 15444), (1474, 14742), (1638, 13266), (1716, 12663), (1742, 12474), (1782, 12194), (1809, 12012), (1876, 11583), (2002, 10854), (2079, 10452), (2106, 10318), (2211, 9828), (2268, 9581), (2412, 9009), (2457, 8844), (2574, 8442), (2613, 8316), (2772, 7839), (2814, 7722), (2948, 7371), (3003, 7236), (3276, 6633), (3484, 6237), (3564, 6097), (3618, 6006), (3861, 5628), (4004, 5427), (4158, 5226), (4212, 5159), (4221, 5148), (4422, 4914)]