388011627

素因数分解:

$3^4\times {\mathrm{661}}^1\times {\mathrm{7247}}^1$

素因数の和:7920

約数の個数: 20

約数和(自身を含む): 580579296

約数和(自身を除く): 192567669

約数列:

[1, 3, 9, 27, 81, 661, 1983, 5949, 7247, 17847, 21741, 53541, 65223, 195669, 587007, 4790267, 14370801, 43112403, 129337209, 388011627]

約数ペア:

[(1, 388011627), (3, 129337209), (9, 43112403), (27, 14370801), (81, 4790267), (661, 587007), (1983, 195669), (5949, 65223), (7247, 53541), (17847, 21741)]