20499609

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{59}}^2\times {\mathrm{151}}^1$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 30140992

約数和(自身を除く): 9641383

約数列:

[1, 3, 13, 39, 59, 151, 177, 453, 767, 1963, 2301, 3481, 5889, 8909, 10443, 26727, 45253, 115817, 135759, 347451, 525631, 1576893, 6833203, 20499609]

約数ペア:

[(1, 20499609), (3, 6833203), (13, 1576893), (39, 525631), (59, 347451), (151, 135759), (177, 115817), (453, 45253), (767, 26727), (1963, 10443), (2301, 8909), (3481, 5889)]