21070871

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 23173920

約数和(自身を除く): 2103049

約数列:

[1, 17, 37, 139, 241, 629, 2363, 4097, 5143, 8917, 33499, 87431, 151589, 569483, 1239463, 21070871]

約数ペア:

[(1, 21070871), (17, 1239463), (37, 569483), (139, 151589), (241, 87431), (629, 33499), (2363, 8917), (4097, 5143)]