21265420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{96661}}^1$

素因数の和:96681

約数の個数: 24

約数和(自身を含む): 48717648

約数和(自身を除く): 27452228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 96661, 193322, 386644, 483305, 966610, 1063271, 1933220, 2126542, 4253084, 5316355, 10632710, 21265420]

約数ペア:

[(1, 21265420), (2, 10632710), (4, 5316355), (5, 4253084), (10, 2126542), (11, 1933220), (20, 1063271), (22, 966610), (44, 483305), (55, 386644), (110, 193322), (220, 96661)]