20469701

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 25510464

約数和(自身を除く): 5040763

約数列:

[1, 7, 23, 41, 49, 161, 287, 443, 943, 1127, 2009, 3101, 6601, 10189, 18163, 21707, 46207, 71323, 127141, 417749, 499261, 889987, 2924243, 20469701]

約数ペア:

[(1, 20469701), (7, 2924243), (23, 889987), (41, 499261), (49, 417749), (161, 127141), (287, 71323), (443, 46207), (943, 21707), (1127, 18163), (2009, 10189), (3101, 6601)]