21408218

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{17519}}^1$

素因数の和:17581

約数の個数: 16

約数和(自身を含む): 35320320

約数和(自身を除く): 13912102

約数列:

[1, 2, 13, 26, 47, 94, 611, 1222, 17519, 35038, 227747, 455494, 823393, 1646786, 10704109, 21408218]

約数ペア:

[(1, 21408218), (2, 10704109), (13, 1646786), (26, 823393), (47, 455494), (94, 227747), (611, 35038), (1222, 17519)]