21170324

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{6691}}^1$

素因数の和:6815

約数の個数: 24

約数和(自身を含む): 42721728

約数和(自身を除く): 21551404

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 6691, 13382, 26764, 46837, 93674, 187348, 756083, 1512166, 3024332, 5292581, 10585162, 21170324]

約数ペア:

[(1, 21170324), (2, 10585162), (4, 5292581), (7, 3024332), (14, 1512166), (28, 756083), (113, 187348), (226, 93674), (452, 46837), (791, 26764), (1582, 13382), (3164, 6691)]