21072597

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11027}}^1$

素因数の和:11057

約数の個数: 24

約数和(自身を含む): 35201376

約数和(自身を除く): 14128779

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11027, 33081, 77189, 143351, 231567, 430053, 540323, 1003457, 1620969, 3010371, 7024199, 21072597]

約数ペア:

[(1, 21072597), (3, 7024199), (7, 3010371), (13, 1620969), (21, 1003457), (39, 540323), (49, 430053), (91, 231567), (147, 143351), (273, 77189), (637, 33081), (1911, 11027)]