251844171

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{443}}^1$

素因数の和:691

約数の個数: 32

約数和(自身を含む): 363667968

約数和(自身を除く): 111823797

約数列:

[1, 3, 17, 51, 71, 157, 213, 443, 471, 1207, 1329, 2669, 3621, 7531, 8007, 11147, 22593, 31453, 33441, 69551, 94359, 189499, 208653, 534701, 568497, 1182367, 1604103, 3547101, 4938121, 14814363, 83948057, 251844171]

約数ペア:

[(1, 251844171), (3, 83948057), (17, 14814363), (51, 4938121), (71, 3547101), (157, 1604103), (213, 1182367), (443, 568497), (471, 534701), (1207, 208653), (1329, 189499), (2669, 94359), (3621, 69551), (7531, 33441), (8007, 31453), (11147, 22593)]