221472719

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{5087}}^1$

素因数の和:5314

約数の個数: 16

約数和(自身を含む): 253870848

約数和(自身を除く): 32398129

約数列:

[1, 13, 17, 197, 221, 2561, 3349, 5087, 43537, 66131, 86479, 1002139, 1124227, 13027807, 17036363, 221472719]

約数ペア:

[(1, 221472719), (13, 17036363), (17, 13027807), (197, 1124227), (221, 1002139), (2561, 86479), (3349, 66131), (5087, 43537)]