21373235

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8887}}^1$

素因数の和:8942

約数の個数: 16

約数和(自身を含む): 28370496

約数和(自身を除く): 6997261

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8887, 44435, 115531, 328819, 577655, 1644095, 4274647, 21373235]

約数ペア:

[(1, 21373235), (5, 4274647), (13, 1644095), (37, 577655), (65, 328819), (185, 115531), (481, 44435), (2405, 8887)]