20212988

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 36024912

約数和(自身を除く): 15811924

約数列:

[1, 2, 4, 113, 197, 226, 227, 394, 452, 454, 788, 908, 22261, 25651, 44522, 44719, 51302, 89044, 89438, 102604, 178876, 5053247, 10106494, 20212988]

約数ペア:

[(1, 20212988), (2, 10106494), (4, 5053247), (113, 178876), (197, 102604), (226, 89438), (227, 89044), (394, 51302), (452, 44719), (454, 44522), (788, 25651), (908, 22261)]