15217998

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:472

約数の個数: 32

約数和(自身を含む): 31207680

約数和(自身を除く): 15989682

約数列:

[1, 2, 3, 6, 71, 139, 142, 213, 257, 278, 417, 426, 514, 771, 834, 1542, 9869, 18247, 19738, 29607, 35723, 36494, 54741, 59214, 71446, 107169, 109482, 214338, 2536333, 5072666, 7608999, 15217998]

約数ペア:

[(1, 15217998), (2, 7608999), (3, 5072666), (6, 2536333), (71, 214338), (139, 109482), (142, 107169), (213, 71446), (257, 59214), (278, 54741), (417, 36494), (426, 35723), (514, 29607), (771, 19738), (834, 18247), (1542, 9869)]