21305268

素因数分解:

$2^2\times 3^5\times {\mathrm{23}}^1\times {\mathrm{953}}^1$

素因数の和:995

約数の個数: 72

約数和(自身を含む): 58339008

約数和(自身を除く): 37033740

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 46, 54, 69, 81, 92, 108, 138, 162, 207, 243, 276, 324, 414, 486, 621, 828, 953, 972, 1242, 1863, 1906, 2484, 2859, 3726, 3812, 5589, 5718, 7452, 8577, 11178, 11436, 17154, 21919, 22356, 25731, 34308, 43838, 51462, 65757, 77193, 87676, 102924, 131514, 154386, 197271, 231579, 263028, 308772, 394542, 463158, 591813, 789084, 926316, 1183626, 1775439, 2367252, 3550878, 5326317, 7101756, 10652634, 21305268]

約数ペア:

[(1, 21305268), (2, 10652634), (3, 7101756), (4, 5326317), (6, 3550878), (9, 2367252), (12, 1775439), (18, 1183626), (23, 926316), (27, 789084), (36, 591813), (46, 463158), (54, 394542), (69, 308772), (81, 263028), (92, 231579), (108, 197271), (138, 154386), (162, 131514), (207, 102924), (243, 87676), (276, 77193), (324, 65757), (414, 51462), (486, 43838), (621, 34308), (828, 25731), (953, 22356), (972, 21919), (1242, 17154), (1863, 11436), (1906, 11178), (2484, 8577), (2859, 7452), (3726, 5718), (3812, 5589)]