21031269

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43543}}^1$

素因数の和:43576

約数の個数: 16

約数和(自身を含む): 33441792

約数和(自身を除く): 12410523

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43543, 130629, 304801, 914403, 1001489, 3004467, 7010423, 21031269]

約数ペア:

[(1, 21031269), (3, 7010423), (7, 3004467), (21, 1001489), (23, 914403), (69, 304801), (161, 130629), (483, 43543)]