21262930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163561}}^1$

素因数の和:163581

約数の個数: 16

約数和(自身を含む): 41217624

約数和(自身を除く): 19954694

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163561, 327122, 817805, 1635610, 2126293, 4252586, 10631465, 21262930]

約数ペア:

[(1, 21262930), (2, 10631465), (5, 4252586), (10, 2126293), (13, 1635610), (26, 817805), (65, 327122), (130, 163561)]