21572945

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{227}}^1\times {\mathrm{229}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 26429760

約数和(自身を除く): 4856815

約数列:

[1, 5, 83, 227, 229, 415, 1135, 1145, 18841, 19007, 51983, 94205, 95035, 259915, 4314589, 21572945]

約数ペア:

[(1, 21572945), (5, 4314589), (83, 259915), (227, 95035), (229, 94205), (415, 51983), (1135, 19007), (1145, 18841)]