21216416

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{51001}}^1$

素因数の和:51024

約数の個数: 24

約数和(自身を含む): 44983764

約数和(自身を除く): 23767348

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 51001, 102002, 204004, 408008, 663013, 816016, 1326026, 1632032, 2652052, 5304104, 10608208, 21216416]

約数ペア:

[(1, 21216416), (2, 10608208), (4, 5304104), (8, 2652052), (13, 1632032), (16, 1326026), (26, 816016), (32, 663013), (52, 408008), (104, 204004), (208, 102002), (416, 51001)]