21211508731

素因数分解:

$7^1\times {\mathrm{149}}^1\times {\mathrm{2447}}^1\times {\mathrm{8311}}^1$

素因数の和:10914

約数の個数: 16

約数和(自身を含む): 24417331200

約数和(自身を除く): 3205822469

約数列:

[1, 7, 149, 1043, 2447, 8311, 17129, 58177, 364603, 1238339, 2552221, 8668373, 20337017, 142359119, 3030215533, 21211508731]

約数ペア:

[(1, 21211508731), (7, 3030215533), (149, 142359119), (1043, 20337017), (2447, 8668373), (8311, 2552221), (17129, 1238339), (58177, 364603)]