20943605

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{491}}^1$

素因数の和:964

約数の個数: 16

約数和(自身を含む): 26568000

約数和(自身を除く): 5624395

約数列:

[1, 5, 19, 95, 449, 491, 2245, 2455, 8531, 9329, 42655, 46645, 220459, 1102295, 4188721, 20943605]

約数ペア:

[(1, 20943605), (5, 4188721), (19, 1102295), (95, 220459), (449, 46645), (491, 42655), (2245, 9329), (2455, 8531)]