20900691

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{5623}}^1$

素因数の和:5695

約数の個数: 24

約数和(自身を含む): 35093760

約数和(自身を除く): 14193069

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 5623, 16869, 39361, 50607, 118083, 331757, 354249, 995271, 2322299, 2985813, 6966897, 20900691]

約数ペア:

[(1, 20900691), (3, 6966897), (7, 2985813), (9, 2322299), (21, 995271), (59, 354249), (63, 331757), (177, 118083), (413, 50607), (531, 39361), (1239, 16869), (3717, 5623)]