21940485

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{29851}}^1$

素因数の和:29873

約数の個数: 24

約数和(自身を含む): 40837536

約数和(自身を除く): 18897051

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 29851, 89553, 149255, 208957, 447765, 626871, 1044785, 1462699, 3134355, 4388097, 7313495, 21940485]

約数ペア:

[(1, 21940485), (3, 7313495), (5, 4388097), (7, 3134355), (15, 1462699), (21, 1044785), (35, 626871), (49, 447765), (105, 208957), (147, 149255), (245, 89553), (735, 29851)]