21096711

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{8111}}^1$

素因数の和:8151

約数の個数: 18

約数和(自身を含む): 32374992

約数和(自身を除く): 11278281

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 8111, 24333, 72999, 137887, 413661, 1240983, 2344079, 7032237, 21096711]

約数ペア:

[(1, 21096711), (3, 7032237), (9, 2344079), (17, 1240983), (51, 413661), (153, 137887), (289, 72999), (867, 24333), (2601, 8111)]