21470421

素因数分解:

$3^1\times 7^1\times {\mathrm{857}}^1\times {\mathrm{1193}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 32782464

約数和(自身を除く): 11312043

約数列:

[1, 3, 7, 21, 857, 1193, 2571, 3579, 5999, 8351, 17997, 25053, 1022401, 3067203, 7156807, 21470421]

約数ペア:

[(1, 21470421), (3, 7156807), (7, 3067203), (21, 1022401), (857, 25053), (1193, 17997), (2571, 8351), (3579, 5999)]