1812213

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{1721}}^1$

素因数の和:1746

約数の個数: 20

約数和(自身を含む): 2917068

約数和(自身を除く): 1104855

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 1721, 5163, 15489, 22373, 46467, 67119, 139401, 201357, 604071, 1812213]

約数ペア:

[(1, 1812213), (3, 604071), (9, 201357), (13, 139401), (27, 67119), (39, 46467), (81, 22373), (117, 15489), (351, 5163), (1053, 1721)]