321876321

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{7121}}^1$

素因数の和:7217

約数の個数: 32

約数和(自身を含む): 494551680

約数和(自身を除く): 172675359

約数列:

[1, 3, 13, 19, 39, 57, 61, 183, 247, 741, 793, 1159, 2379, 3477, 7121, 15067, 21363, 45201, 92573, 135299, 277719, 405897, 434381, 1303143, 1758887, 5276661, 5646953, 8253239, 16940859, 24759717, 107292107, 321876321]

約数ペア:

[(1, 321876321), (3, 107292107), (13, 24759717), (19, 16940859), (39, 8253239), (57, 5646953), (61, 5276661), (183, 1758887), (247, 1303143), (741, 434381), (793, 405897), (1159, 277719), (2379, 135299), (3477, 92573), (7121, 45201), (15067, 21363)]