21152026

素因数分解:

$2^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{2137}}^1$

素因数の和:2254

約数の個数: 24

約数和(自身を含む): 37290996

約数和(自身を除く): 16138970

約数列:

[1, 2, 7, 14, 49, 98, 101, 202, 707, 1414, 2137, 4274, 4949, 9898, 14959, 29918, 104713, 209426, 215837, 431674, 1510859, 3021718, 10576013, 21152026]

約数ペア:

[(1, 21152026), (2, 10576013), (7, 3021718), (14, 1510859), (49, 431674), (98, 215837), (101, 209426), (202, 104713), (707, 29918), (1414, 14959), (2137, 9898), (4274, 4949)]