213565515

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 365202432

約数和(自身を除く): 151636917

約数列:

[1, 3, 5, 15, 41, 67, 71, 73, 123, 201, 205, 213, 219, 335, 355, 365, 615, 1005, 1065, 1095, 2747, 2911, 2993, 4757, 4891, 5183, 8241, 8733, 8979, 13735, 14271, 14555, 14673, 14965, 15549, 23785, 24455, 25915, 41205, 43665, 44895, 71355, 73365, 77745, 195037, 200531, 212503, 347261, 585111, 601593, 637509, 975185, 1002655, 1041783, 1062515, 1736305, 2925555, 3007965, 3187545, 5208915, 14237701, 42713103, 71188505, 213565515]

約数ペア:

[(1, 213565515), (3, 71188505), (5, 42713103), (15, 14237701), (41, 5208915), (67, 3187545), (71, 3007965), (73, 2925555), (123, 1736305), (201, 1062515), (205, 1041783), (213, 1002655), (219, 975185), (335, 637509), (355, 601593), (365, 585111), (615, 347261), (1005, 212503), (1065, 200531), (1095, 195037), (2747, 77745), (2911, 73365), (2993, 71355), (4757, 44895), (4891, 43665), (5183, 41205), (8241, 25915), (8733, 24455), (8979, 23785), (13735, 15549), (14271, 14965), (14555, 14673)]