21152848

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21673}}^1$

素因数の和:21742

約数の個数: 20

約数和(自身を含む): 41657428

約数和(自身を除く): 20504580

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21673, 43346, 86692, 173384, 346768, 1322053, 2644106, 5288212, 10576424, 21152848]

約数ペア:

[(1, 21152848), (2, 10576424), (4, 5288212), (8, 2644106), (16, 1322053), (61, 346768), (122, 173384), (244, 86692), (488, 43346), (976, 21673)]