20804085127

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1\times {\mathrm{3347}}^1$

素因数の和:3727

約数の個数: 32

約数和(自身を含む): 24768986112

約数和(自身を除く): 3964900985

約数列:

[1, 7, 37, 103, 233, 259, 721, 1631, 3347, 3811, 8621, 23429, 23999, 26677, 60347, 123839, 167993, 344741, 779851, 866873, 887963, 2413187, 5458957, 6215741, 12755417, 28854487, 80324653, 89287919, 201981409, 562272571, 2972012161, 20804085127]

約数ペア:

[(1, 20804085127), (7, 2972012161), (37, 562272571), (103, 201981409), (233, 89287919), (259, 80324653), (721, 28854487), (1631, 12755417), (3347, 6215741), (3811, 5458957), (8621, 2413187), (23429, 887963), (23999, 866873), (26677, 779851), (60347, 344741), (123839, 167993)]