20201556963

素因数分解:

$3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{9339601}}^1$

素因数の和:9339714

約数の個数: 16

約数和(自身を含む): 31082195456

約数和(自身を除く): 10880638493

約数列:

[1, 3, 7, 21, 103, 309, 721, 2163, 9339601, 28018803, 65377207, 196131621, 961978903, 2885936709, 6733852321, 20201556963]

約数ペア:

[(1, 20201556963), (3, 6733852321), (7, 2885936709), (21, 961978903), (103, 196131621), (309, 65377207), (721, 28018803), (2163, 9339601)]