21540974

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1667}}^1$

素因数の和:1760

約数の個数: 32

約数和(自身を含む): 40352256

約数和(自身を除く): 18811282

約数列:

[1, 2, 7, 13, 14, 26, 71, 91, 142, 182, 497, 923, 994, 1667, 1846, 3334, 6461, 11669, 12922, 21671, 23338, 43342, 118357, 151697, 236714, 303394, 828499, 1538641, 1656998, 3077282, 10770487, 21540974]

約数ペア:

[(1, 21540974), (2, 10770487), (7, 3077282), (13, 1656998), (14, 1538641), (26, 828499), (71, 303394), (91, 236714), (142, 151697), (182, 118357), (497, 43342), (923, 23338), (994, 21671), (1667, 12922), (1846, 11669), (3334, 6461)]