21276813

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{1861}}^1$

素因数の和:2004

約数の個数: 16

約数和(自身を含む): 29434496

約数和(自身を除く): 8157683

約数列:

[1, 3, 37, 103, 111, 309, 1861, 3811, 5583, 11433, 68857, 191683, 206571, 575049, 7092271, 21276813]

約数ペア:

[(1, 21276813), (3, 7092271), (37, 575049), (103, 206571), (111, 191683), (309, 68857), (1861, 11433), (3811, 5583)]