21315718

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{379}}^1\times {\mathrm{461}}^1$

素因数の和:903

約数の個数: 16

約数和(自身を含む): 32654160

約数和(自身を除く): 11338442

約数列:

[1, 2, 61, 122, 379, 461, 758, 922, 23119, 28121, 46238, 56242, 174719, 349438, 10657859, 21315718]

約数ペア:

[(1, 21315718), (2, 10657859), (61, 349438), (122, 174719), (379, 56242), (461, 46238), (758, 28121), (922, 23119)]