21047404

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{4153}}^1$

素因数の和:4345

約数の個数: 24

約数和(自身を含む): 42337568

約数和(自身を除く): 21290164

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 724, 1267, 2534, 4153, 5068, 8306, 16612, 29071, 58142, 116284, 751693, 1503386, 3006772, 5261851, 10523702, 21047404]

約数ペア:

[(1, 21047404), (2, 10523702), (4, 5261851), (7, 3006772), (14, 1503386), (28, 751693), (181, 116284), (362, 58142), (724, 29071), (1267, 16612), (2534, 8306), (4153, 5068)]