21817851

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38891}}^1$

素因数の和:38922

約数の個数: 16

約数和(自身を含む): 33602688

約数和(自身を除く): 11784837

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38891, 116673, 427801, 661147, 1283403, 1983441, 7272617, 21817851]

約数ペア:

[(1, 21817851), (3, 7272617), (11, 1983441), (17, 1283403), (33, 661147), (51, 427801), (187, 116673), (561, 38891)]