21502736

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{25357}}^1$

素因数の和:25418

約数の個数: 20

約数和(自身を含む): 42449292

約数和(自身を除く): 20946556

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 25357, 50714, 101428, 202856, 405712, 1343921, 2687842, 5375684, 10751368, 21502736]

約数ペア:

[(1, 21502736), (2, 10751368), (4, 5375684), (8, 2687842), (16, 1343921), (53, 405712), (106, 202856), (212, 101428), (424, 50714), (848, 25357)]