20571071

素因数分解:

${\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:430

約数の個数: 16

約数和(自身を含む): 22581504

約数和(自身を除く): 2010433

約数列:

[1, 17, 43, 107, 263, 731, 1819, 4471, 4601, 11309, 28141, 78217, 192253, 478397, 1210063, 20571071]

約数ペア:

[(1, 20571071), (17, 1210063), (43, 478397), (107, 192253), (263, 78217), (731, 28141), (1819, 11309), (4471, 4601)]