20565747

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:603

約数の個数: 24

約数和(自身を含む): 30786080

約数和(自身を除く): 10220333

約数列:

[1, 3, 9, 37, 111, 151, 333, 409, 453, 1227, 1359, 3681, 5587, 15133, 16761, 45399, 50283, 61759, 136197, 185277, 555831, 2285083, 6855249, 20565747]

約数ペア:

[(1, 20565747), (3, 6855249), (9, 2285083), (37, 555831), (111, 185277), (151, 136197), (333, 61759), (409, 50283), (453, 45399), (1227, 16761), (1359, 15133), (3681, 5587)]