21308196

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 65587200

約数和(自身を除く): 44279004

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 19, 21, 26, 28, 38, 39, 42, 52, 57, 76, 78, 79, 84, 91, 114, 133, 156, 158, 169, 182, 228, 237, 247, 266, 273, 316, 338, 364, 399, 474, 494, 507, 532, 546, 553, 676, 741, 798, 948, 988, 1014, 1027, 1092, 1106, 1183, 1482, 1501, 1596, 1659, 1729, 2028, 2054, 2212, 2366, 2964, 3002, 3081, 3211, 3318, 3458, 3549, 4108, 4503, 4732, 5187, 6004, 6162, 6422, 6636, 6916, 7098, 7189, 9006, 9633, 10374, 10507, 12324, 12844, 13351, 14196, 14378, 18012, 19266, 19513, 20748, 21014, 21567, 22477, 26702, 28756, 31521, 38532, 39026, 40053, 42028, 43134, 44954, 53404, 58539, 63042, 67431, 78052, 80106, 86268, 89908, 93457, 117078, 126084, 134862, 136591, 160212, 186914, 234156, 253669, 269724, 273182, 280371, 373828, 409773, 507338, 546364, 560742, 761007, 819546, 1014676, 1121484, 1522014, 1639092, 1775683, 3044028, 3551366, 5327049, 7102732, 10654098, 21308196]

約数ペア:

[(1, 21308196), (2, 10654098), (3, 7102732), (4, 5327049), (6, 3551366), (7, 3044028), (12, 1775683), (13, 1639092), (14, 1522014), (19, 1121484), (21, 1014676), (26, 819546), (28, 761007), (38, 560742), (39, 546364), (42, 507338), (52, 409773), (57, 373828), (76, 280371), (78, 273182), (79, 269724), (84, 253669), (91, 234156), (114, 186914), (133, 160212), (156, 136591), (158, 134862), (169, 126084), (182, 117078), (228, 93457), (237, 89908), (247, 86268), (266, 80106), (273, 78052), (316, 67431), (338, 63042), (364, 58539), (399, 53404), (474, 44954), (494, 43134), (507, 42028), (532, 40053), (546, 39026), (553, 38532), (676, 31521), (741, 28756), (798, 26702), (948, 22477), (988, 21567), (1014, 21014), (1027, 20748), (1092, 19513), (1106, 19266), (1183, 18012), (1482, 14378), (1501, 14196), (1596, 13351), (1659, 12844), (1729, 12324), (2028, 10507), (2054, 10374), (2212, 9633), (2366, 9006), (2964, 7189), (3002, 7098), (3081, 6916), (3211, 6636), (3318, 6422), (3458, 6162), (3549, 6004), (4108, 5187), (4503, 4732)]