278340867

素因数分解:

$3^4\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3251}}^1$

素因数の和:3421

約数の個数: 40

約数和(自身を含む): 478486272

約数和(自身を除く): 200145405

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 151, 189, 453, 567, 1057, 1359, 3171, 3251, 4077, 9513, 9753, 12231, 22757, 28539, 29259, 68271, 85617, 87777, 204813, 263331, 490901, 614439, 1472703, 1843317, 3436307, 4418109, 10308921, 13254327, 30926763, 39762981, 92780289, 278340867]

約数ペア:

[(1, 278340867), (3, 92780289), (7, 39762981), (9, 30926763), (21, 13254327), (27, 10308921), (63, 4418109), (81, 3436307), (151, 1843317), (189, 1472703), (453, 614439), (567, 490901), (1057, 263331), (1359, 204813), (3171, 87777), (3251, 85617), (4077, 68271), (9513, 29259), (9753, 28539), (12231, 22757)]