15661199421

素因数分解:

$3^4\times 7^1\times {\mathrm{27621163}}^1$

素因数の和:27621182

約数の個数: 20

約数和(自身を含む): 26737286752

約数和(自身を除く): 11076087331

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 27621163, 82863489, 193348141, 248590467, 580044423, 745771401, 1740133269, 2237314203, 5220399807, 15661199421]

約数ペア:

[(1, 15661199421), (3, 5220399807), (7, 2237314203), (9, 1740133269), (21, 745771401), (27, 580044423), (63, 248590467), (81, 193348141), (189, 82863489), (567, 27621163)]