28093317

素因数分解:

$3^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{857}}^1$

素因数の和:1097

約数の個数: 24

約数和(自身を含む): 43819776

約数和(自身を除く): 15726459

約数列:

[1, 3, 7, 21, 49, 147, 223, 669, 857, 1561, 2571, 4683, 5999, 10927, 17997, 32781, 41993, 125979, 191111, 573333, 1337777, 4013331, 9364439, 28093317]

約数ペア:

[(1, 28093317), (3, 9364439), (7, 4013331), (21, 1337777), (49, 573333), (147, 191111), (223, 125979), (669, 41993), (857, 32781), (1561, 17997), (2571, 10927), (4683, 5999)]