1021895

素因数分解:

$5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 1474704

約数和(自身を除く): 452809

約数列:

[1, 5, 7, 35, 43, 49, 97, 215, 245, 301, 485, 679, 1505, 2107, 3395, 4171, 4753, 10535, 20855, 23765, 29197, 145985, 204379, 1021895]

約数ペア:

[(1, 1021895), (5, 204379), (7, 145985), (35, 29197), (43, 23765), (49, 20855), (97, 10535), (215, 4753), (245, 4171), (301, 3395), (485, 2107), (679, 1505)]