399392511

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{3581}}^1$

素因数の和:3751

約数の個数: 32

約数和(自身を含む): 627222528

約数和(自身を除く): 227830017

約数列:

[1, 3, 7, 21, 47, 113, 141, 329, 339, 791, 987, 2373, 3581, 5311, 10743, 15933, 25067, 37177, 75201, 111531, 168307, 404653, 504921, 1178149, 1213959, 2832571, 3534447, 8497713, 19018691, 57056073, 133130837, 399392511]

約数ペア:

[(1, 399392511), (3, 133130837), (7, 57056073), (21, 19018691), (47, 8497713), (113, 3534447), (141, 2832571), (329, 1213959), (339, 1178149), (791, 504921), (987, 404653), (2373, 168307), (3581, 111531), (5311, 75201), (10743, 37177), (15933, 25067)]