393816381

素因数分解:

$3^1\times 7^2\times {\mathrm{757}}^1\times {\mathrm{3539}}^1$

素因数の和:4313

約数の個数: 24

約数和(自身を含む): 611796960

約数和(自身を除く): 217980579

約数列:

[1, 3, 7, 21, 49, 147, 757, 2271, 3539, 5299, 10617, 15897, 24773, 37093, 74319, 111279, 173411, 520233, 2679023, 8037069, 18753161, 56259483, 131272127, 393816381]

約数ペア:

[(1, 393816381), (3, 131272127), (7, 56259483), (21, 18753161), (49, 8037069), (147, 2679023), (757, 520233), (2271, 173411), (3539, 111279), (5299, 74319), (10617, 37093), (15897, 24773)]