21958490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{115571}}^1$

素因数の和:115597

約数の個数: 16

約数和(自身を含む): 41605920

約数和(自身を除く): 19647430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 115571, 231142, 577855, 1155710, 2195849, 4391698, 10979245, 21958490]

約数ペア:

[(1, 21958490), (2, 10979245), (5, 4391698), (10, 2195849), (19, 1155710), (38, 577855), (95, 231142), (190, 115571)]