21664188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:436

約数の個数: 144

約数和(自身を含む): 71547840

約数和(自身を除く): 49883652

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 17, 18, 21, 26, 28, 34, 36, 39, 42, 51, 52, 63, 68, 78, 84, 91, 102, 117, 119, 126, 153, 156, 182, 204, 221, 234, 238, 252, 273, 306, 357, 364, 389, 442, 468, 476, 546, 612, 663, 714, 778, 819, 884, 1071, 1092, 1167, 1326, 1428, 1547, 1556, 1638, 1989, 2142, 2334, 2652, 2723, 3094, 3276, 3501, 3978, 4284, 4641, 4668, 5057, 5446, 6188, 6613, 7002, 7956, 8169, 9282, 10114, 10892, 13226, 13923, 14004, 15171, 16338, 18564, 19839, 20228, 24507, 26452, 27846, 30342, 32676, 35399, 39678, 45513, 46291, 49014, 55692, 59517, 60684, 70798, 79356, 85969, 91026, 92582, 98028, 106197, 119034, 138873, 141596, 171938, 182052, 185164, 212394, 238068, 257907, 277746, 318591, 343876, 416619, 424788, 515814, 555492, 601783, 637182, 773721, 833238, 1031628, 1203566, 1274364, 1547442, 1666476, 1805349, 2407132, 3094884, 3610698, 5416047, 7221396, 10832094, 21664188]

約数ペア:

[(1, 21664188), (2, 10832094), (3, 7221396), (4, 5416047), (6, 3610698), (7, 3094884), (9, 2407132), (12, 1805349), (13, 1666476), (14, 1547442), (17, 1274364), (18, 1203566), (21, 1031628), (26, 833238), (28, 773721), (34, 637182), (36, 601783), (39, 555492), (42, 515814), (51, 424788), (52, 416619), (63, 343876), (68, 318591), (78, 277746), (84, 257907), (91, 238068), (102, 212394), (117, 185164), (119, 182052), (126, 171938), (153, 141596), (156, 138873), (182, 119034), (204, 106197), (221, 98028), (234, 92582), (238, 91026), (252, 85969), (273, 79356), (306, 70798), (357, 60684), (364, 59517), (389, 55692), (442, 49014), (468, 46291), (476, 45513), (546, 39678), (612, 35399), (663, 32676), (714, 30342), (778, 27846), (819, 26452), (884, 24507), (1071, 20228), (1092, 19839), (1167, 18564), (1326, 16338), (1428, 15171), (1547, 14004), (1556, 13923), (1638, 13226), (1989, 10892), (2142, 10114), (2334, 9282), (2652, 8169), (2723, 7956), (3094, 7002), (3276, 6613), (3501, 6188), (3978, 5446), (4284, 5057), (4641, 4668)]