21926121

素因数分解:

$3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1511}}^1$

素因数の和:2212

約数の個数: 16

約数和(自身を含む): 33481728

約数和(自身を除く): 11555607

約数列:

[1, 3, 7, 21, 691, 1511, 2073, 4533, 4837, 10577, 14511, 31731, 1044101, 3132303, 7308707, 21926121]

約数ペア:

[(1, 21926121), (3, 7308707), (7, 3132303), (21, 1044101), (691, 31731), (1511, 14511), (2073, 10577), (4533, 4837)]