31131387

素因数分解:

$3^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{4373}}^1$

素因数の和:4499

約数の個数: 24

約数和(自身を含む): 51858144

約数和(自身を除く): 20726757

約数列:

[1, 3, 7, 9, 21, 63, 113, 339, 791, 1017, 2373, 4373, 7119, 13119, 30611, 39357, 91833, 275499, 494149, 1482447, 3459043, 4447341, 10377129, 31131387]

約数ペア:

[(1, 31131387), (3, 10377129), (7, 4447341), (9, 3459043), (21, 1482447), (63, 494149), (113, 275499), (339, 91833), (791, 39357), (1017, 30611), (2373, 13119), (4373, 7119)]