21891490

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{19373}}^1$

素因数の和:19493

約数の個数: 16

約数和(自身を含む): 39755448

約数和(自身を除く): 17863958

約数列:

[1, 2, 5, 10, 113, 226, 565, 1130, 19373, 38746, 96865, 193730, 2189149, 4378298, 10945745, 21891490]

約数ペア:

[(1, 21891490), (2, 10945745), (5, 4378298), (10, 2189149), (113, 193730), (226, 96865), (565, 38746), (1130, 19373)]