399866999

素因数分解:

$7^3\times {\mathrm{139}}^1\times {\mathrm{8387}}^1$

素因数の和:8547

約数の個数: 16

約数和(自身を含む): 469728000

約数和(自身を除く): 69861001

約数列:

[1, 7, 49, 139, 343, 973, 6811, 8387, 47677, 58709, 410963, 1165793, 2876741, 8160551, 57123857, 399866999]

約数ペア:

[(1, 399866999), (7, 57123857), (49, 8160551), (139, 2876741), (343, 1165793), (973, 410963), (6811, 58709), (8387, 47677)]