20649764

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{5147}}^1$

素因数の和:5227

約数の個数: 24

約数和(自身を含む): 38918880

約数和(自身を除く): 18269116

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 5147, 10294, 20588, 87499, 174998, 303673, 349996, 607346, 1214692, 5162441, 10324882, 20649764]

約数ペア:

[(1, 20649764), (2, 10324882), (4, 5162441), (17, 1214692), (34, 607346), (59, 349996), (68, 303673), (118, 174998), (236, 87499), (1003, 20588), (2006, 10294), (4012, 5147)]