18638478

素因数分解:

$2^1\times 3^3\times {\mathrm{547}}^1\times {\mathrm{631}}^1$

素因数の和:1189

約数の個数: 32

約数和(自身を含む): 41560320

約数和(自身を除く): 22921842

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 547, 631, 1094, 1262, 1641, 1893, 3282, 3786, 4923, 5679, 9846, 11358, 14769, 17037, 29538, 34074, 345157, 690314, 1035471, 2070942, 3106413, 6212826, 9319239, 18638478]

約数ペア:

[(1, 18638478), (2, 9319239), (3, 6212826), (6, 3106413), (9, 2070942), (18, 1035471), (27, 690314), (54, 345157), (547, 34074), (631, 29538), (1094, 17037), (1262, 14769), (1641, 11358), (1893, 9846), (3282, 5679), (3786, 4923)]