81264771

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{21863}}^1$

素因数の和:21935

約数の個数: 24

約数和(自身を含む): 136431360

約数和(自身を除く): 55166589

約数列:

[1, 3, 7, 9, 21, 59, 63, 177, 413, 531, 1239, 3717, 21863, 65589, 153041, 196767, 459123, 1289917, 1377369, 3869751, 9029419, 11609253, 27088257, 81264771]

約数ペア:

[(1, 81264771), (3, 27088257), (7, 11609253), (9, 9029419), (21, 3869751), (59, 1377369), (63, 1289917), (177, 459123), (413, 196767), (531, 153041), (1239, 65589), (3717, 21863)]