20982845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1117}}^1$

素因数の和:1169

約数の個数: 24

約数和(自身を含む): 28830984

約数和(自身を除く): 7848139

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 1105, 1117, 1445, 3757, 5585, 14521, 18785, 18989, 72605, 94945, 246857, 322813, 1234285, 1614065, 4196569, 20982845]

約数ペア:

[(1, 20982845), (5, 4196569), (13, 1614065), (17, 1234285), (65, 322813), (85, 246857), (221, 94945), (289, 72605), (1105, 18989), (1117, 18785), (1445, 14521), (3757, 5585)]