19812850

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{8431}}^1$

素因数の和:8490

約数の個数: 24

約数和(自身を含む): 37640448

約数和(自身を除く): 17827598

約数列:

[1, 2, 5, 10, 25, 47, 50, 94, 235, 470, 1175, 2350, 8431, 16862, 42155, 84310, 210775, 396257, 421550, 792514, 1981285, 3962570, 9906425, 19812850]

約数ペア:

[(1, 19812850), (2, 9906425), (5, 3962570), (10, 1981285), (25, 792514), (47, 421550), (50, 396257), (94, 210775), (235, 84310), (470, 42155), (1175, 16862), (2350, 8431)]