20628069

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12757}}^1$

素因数の和:12785

約数の個数: 24

約数和(自身を含む): 34905888

約数和(自身を除く): 14277819

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12757, 38271, 89299, 140327, 267897, 420981, 625093, 982289, 1875279, 2946867, 6876023, 20628069]

約数ペア:

[(1, 20628069), (3, 6876023), (7, 2946867), (11, 1875279), (21, 982289), (33, 625093), (49, 420981), (77, 267897), (147, 140327), (231, 89299), (539, 38271), (1617, 12757)]