20126203503

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{872057}}^1$

素因数の和:872231

約数の個数: 24

約数和(自身を含む): 31415017392

約数和(自身を除く): 11288813889

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 1099, 3297, 7693, 23079, 872057, 2616171, 6104399, 18313197, 42730793, 128192379, 136912949, 410738847, 958390643, 2875171929, 6708734501, 20126203503]

約数ペア:

[(1, 20126203503), (3, 6708734501), (7, 2875171929), (21, 958390643), (49, 410738847), (147, 136912949), (157, 128192379), (471, 42730793), (1099, 18313197), (3297, 6104399), (7693, 2616171), (23079, 872057)]