20163255

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{3919}}^1$

素因数の和:3948

約数の個数: 32

約数和(自身を含む): 37632000

約数和(自身を除く): 17468745

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1715, 3919, 5145, 11757, 19595, 27433, 58785, 82299, 137165, 192031, 411495, 576093, 960155, 1344217, 2880465, 4032651, 6721085, 20163255]

約数ペア:

[(1, 20163255), (3, 6721085), (5, 4032651), (7, 2880465), (15, 1344217), (21, 960155), (35, 576093), (49, 411495), (105, 192031), (147, 137165), (245, 82299), (343, 58785), (735, 27433), (1029, 19595), (1715, 11757), (3919, 5145)]