20532005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1093}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 28212072

約数和(自身を除く): 7680067

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 1093, 1105, 1445, 3757, 5465, 14209, 18581, 18785, 71045, 92905, 241553, 315877, 1207765, 1579385, 4106401, 20532005]

約数ペア:

[(1, 20532005), (5, 4106401), (13, 1579385), (17, 1207765), (65, 315877), (85, 241553), (221, 92905), (289, 71045), (1093, 18785), (1105, 18581), (1445, 14209), (3757, 5465)]