278216847

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{443}}^1\times {\mathrm{2251}}^1$

素因数の和:2731

約数の個数: 24

約数和(自身を含む): 415953408

約数和(自身を除く): 137736561

約数列:

[1, 3, 9, 31, 93, 279, 443, 1329, 2251, 3987, 6753, 13733, 20259, 41199, 69781, 123597, 209343, 628029, 997193, 2991579, 8974737, 30912983, 92738949, 278216847]

約数ペア:

[(1, 278216847), (3, 92738949), (9, 30912983), (31, 8974737), (93, 2991579), (279, 997193), (443, 628029), (1329, 209343), (2251, 123597), (3987, 69781), (6753, 41199), (13733, 20259)]