21715204

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9817}}^1$

素因数の和:9907

約数の個数: 24

約数和(自身を含む): 43984640

約数和(自身を除く): 22269436

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9817, 19634, 39268, 68719, 137438, 274876, 775543, 1551086, 3102172, 5428801, 10857602, 21715204]

約数ペア:

[(1, 21715204), (2, 10857602), (4, 5428801), (7, 3102172), (14, 1551086), (28, 775543), (79, 274876), (158, 137438), (316, 68719), (553, 39268), (1106, 19634), (2212, 9817)]