21891274

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{3371}}^1$

素因数の和:3581

約数の個数: 16

約数和(自身を含む): 34960896

約数和(自身を除く): 13069622

約数列:

[1, 2, 17, 34, 191, 382, 3247, 3371, 6494, 6742, 57307, 114614, 643861, 1287722, 10945637, 21891274]

約数ペア:

[(1, 21891274), (2, 10945637), (17, 1287722), (34, 643861), (191, 114614), (382, 57307), (3247, 6742), (3371, 6494)]