21806665

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{1699}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 27907200

約数和(自身を除く): 6100535

約数列:

[1, 5, 17, 85, 151, 755, 1699, 2567, 8495, 12835, 28883, 144415, 256549, 1282745, 4361333, 21806665]

約数ペア:

[(1, 21806665), (5, 4361333), (17, 1282745), (85, 256549), (151, 144415), (755, 28883), (1699, 12835), (2567, 8495)]