42911289

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{7907}}^1$

素因数の和:7986

約数の個数: 20

約数和(自身を含む): 65067024

約数和(自身を除く): 22155735

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 7907, 23721, 71163, 213489, 529769, 640467, 1589307, 4767921, 14303763, 42911289]

約数ペア:

[(1, 42911289), (3, 14303763), (9, 4767921), (27, 1589307), (67, 640467), (81, 529769), (201, 213489), (603, 71163), (1809, 23721), (5427, 7907)]