21132010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72869}}^1$

素因数の和:72905

約数の個数: 16

約数和(自身を含む): 39349800

約数和(自身を除く): 18217790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72869, 145738, 364345, 728690, 2113201, 4226402, 10566005, 21132010]

約数ペア:

[(1, 21132010), (2, 10566005), (5, 4226402), (10, 2113201), (29, 728690), (58, 364345), (145, 145738), (290, 72869)]