215961193

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 262831104

約数和(自身を除く): 46869911

約数列:

[1, 7, 37, 47, 113, 157, 259, 329, 791, 1099, 1739, 4181, 5311, 5809, 7379, 12173, 17741, 29267, 37177, 40663, 51653, 124187, 196507, 273023, 656417, 833827, 1375549, 1911161, 4594919, 5836789, 30851599, 215961193]

約数ペア:

[(1, 215961193), (7, 30851599), (37, 5836789), (47, 4594919), (113, 1911161), (157, 1375549), (259, 833827), (329, 656417), (791, 273023), (1099, 196507), (1739, 124187), (4181, 51653), (5311, 40663), (5809, 37177), (7379, 29267), (12173, 17741)]