318613281

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{2203}}^1$

素因数の和:2381

約数の個数: 32

約数和(自身を含む): 497645568

約数和(自身を除く): 179032287

約数列:

[1, 3, 7, 21, 71, 97, 213, 291, 497, 679, 1491, 2037, 2203, 6609, 6887, 15421, 20661, 46263, 48209, 144627, 156413, 213691, 469239, 641073, 1094891, 1495837, 3284673, 4487511, 15172061, 45516183, 106204427, 318613281]

約数ペア:

[(1, 318613281), (3, 106204427), (7, 45516183), (21, 15172061), (71, 4487511), (97, 3284673), (213, 1495837), (291, 1094891), (497, 641073), (679, 469239), (1491, 213691), (2037, 156413), (2203, 144627), (6609, 48209), (6887, 46263), (15421, 20661)]