20854887

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{353}}^1\times {\mathrm{419}}^1$

素因数の和:822

約数の個数: 16

約数和(自身を含む): 28546560

約数和(自身を除く): 7691673

約数列:

[1, 3, 47, 141, 353, 419, 1059, 1257, 16591, 19693, 49773, 59079, 147907, 443721, 6951629, 20854887]

約数ペア:

[(1, 20854887), (3, 6951629), (47, 443721), (141, 147907), (353, 59079), (419, 49773), (1059, 19693), (1257, 16591)]