20378709

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6451}}^1$

素因数の和:6479

約数の個数: 24

約数和(自身を含む): 32879392

約数和(自身を除く): 12500683

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6451, 19353, 58059, 83863, 174177, 251589, 522531, 754767, 1567593, 2264301, 6792903, 20378709]

約数ペア:

[(1, 20378709), (3, 6792903), (9, 2264301), (13, 1567593), (27, 754767), (39, 522531), (81, 251589), (117, 174177), (243, 83863), (351, 58059), (1053, 19353), (3159, 6451)]