21265306

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:286

約数の個数: 32

約数和(自身を含む): 34550208

約数和(自身を除く): 13284902

約数列:

[1, 2, 37, 41, 43, 74, 82, 86, 163, 326, 1517, 1591, 1763, 3034, 3182, 3526, 6031, 6683, 7009, 12062, 13366, 14018, 65231, 130462, 247271, 259333, 287369, 494542, 518666, 574738, 10632653, 21265306]

約数ペア:

[(1, 21265306), (2, 10632653), (37, 574738), (41, 518666), (43, 494542), (74, 287369), (82, 259333), (86, 247271), (163, 130462), (326, 65231), (1517, 14018), (1591, 13366), (1763, 12062), (3034, 7009), (3182, 6683), (3526, 6031)]