21038510

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{110729}}^1$

素因数の和:110755

約数の個数: 16

約数和(自身を含む): 39862800

約数和(自身を除く): 18824290

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 110729, 221458, 553645, 1107290, 2103851, 4207702, 10519255, 21038510]

約数ペア:

[(1, 21038510), (2, 10519255), (5, 4207702), (10, 2103851), (19, 1107290), (38, 553645), (95, 221458), (190, 110729)]