20213620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{144383}}^1$

素因数の和:144399

約数の個数: 24

約数和(自身を含む): 48513024

約数和(自身を除く): 28299404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 144383, 288766, 577532, 721915, 1010681, 1443830, 2021362, 2887660, 4042724, 5053405, 10106810, 20213620]

約数ペア:

[(1, 20213620), (2, 10106810), (4, 5053405), (5, 4042724), (7, 2887660), (10, 2021362), (14, 1443830), (20, 1010681), (28, 721915), (35, 577532), (70, 288766), (140, 144383)]