21731697

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:961

約数の個数: 24

約数和(自身を含む): 33976488

約数和(自身を除く): 12244791

約数列:

[1, 3, 9, 13, 39, 117, 281, 661, 843, 1983, 2529, 3653, 5949, 8593, 10959, 25779, 32877, 77337, 185741, 557223, 1671669, 2414633, 7243899, 21731697]

約数ペア:

[(1, 21731697), (3, 7243899), (9, 2414633), (13, 1671669), (39, 557223), (117, 185741), (281, 77337), (661, 32877), (843, 25779), (1983, 10959), (2529, 8593), (3653, 5949)]