20697325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1031}}^1$

素因数の和:1125

約数の個数: 24

約数和(自身を含む): 28408896

約数和(自身を除く): 7711571

約数列:

[1, 5, 11, 25, 55, 73, 275, 365, 803, 1031, 1825, 4015, 5155, 11341, 20075, 25775, 56705, 75263, 283525, 376315, 827893, 1881575, 4139465, 20697325]

約数ペア:

[(1, 20697325), (5, 4139465), (11, 1881575), (25, 827893), (55, 376315), (73, 283525), (275, 75263), (365, 56705), (803, 25775), (1031, 20075), (1825, 11341), (4015, 5155)]