20317868

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{401}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 36469440

約数和(自身を除く): 16151572

約数列:

[1, 2, 4, 53, 106, 212, 239, 401, 478, 802, 956, 1604, 12667, 21253, 25334, 42506, 50668, 85012, 95839, 191678, 383356, 5079467, 10158934, 20317868]

約数ペア:

[(1, 20317868), (2, 10158934), (4, 5079467), (53, 383356), (106, 191678), (212, 95839), (239, 85012), (401, 50668), (478, 42506), (802, 25334), (956, 21253), (1604, 12667)]