20113765

素因数分解:

$5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{1549}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 28625400

約数和(自身を除く): 8511635

約数列:

[1, 5, 7, 35, 49, 53, 245, 265, 371, 1549, 1855, 2597, 7745, 10843, 12985, 54215, 75901, 82097, 379505, 410485, 574679, 2873395, 4022753, 20113765]

約数ペア:

[(1, 20113765), (5, 4022753), (7, 2873395), (35, 574679), (49, 410485), (53, 379505), (245, 82097), (265, 75901), (371, 54215), (1549, 12985), (1855, 10843), (2597, 7745)]