21255724

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{26177}}^1$

素因数の和:26217

約数の個数: 24

約数和(自身を含む): 43979040

約数和(自身を除く): 22723316

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 26177, 52354, 104708, 183239, 366478, 732956, 759133, 1518266, 3036532, 5313931, 10627862, 21255724]

約数ペア:

[(1, 21255724), (2, 10627862), (4, 5313931), (7, 3036532), (14, 1518266), (28, 759133), (29, 732956), (58, 366478), (116, 183239), (203, 104708), (406, 52354), (812, 26177)]