21417783

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1229}}^1$

素因数の和:1426

約数の個数: 16

約数和(自身を含む): 29539680

約数和(自身を除く): 8121897

約数列:

[1, 3, 37, 111, 157, 471, 1229, 3687, 5809, 17427, 45473, 136419, 192953, 578859, 7139261, 21417783]

約数ペア:

[(1, 21417783), (3, 7139261), (37, 578859), (111, 192953), (157, 136419), (471, 45473), (1229, 17427), (3687, 5809)]