71856171

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 113218560

約数和(自身を除く): 41362389

約数列:

[1, 3, 9, 29, 31, 83, 87, 93, 107, 249, 261, 279, 321, 747, 899, 963, 2407, 2573, 2697, 3103, 3317, 7221, 7719, 8091, 8881, 9309, 9951, 21663, 23157, 26643, 27927, 29853, 74617, 79929, 96193, 223851, 257549, 275311, 288579, 671553, 772647, 825933, 865737, 2317941, 2477799, 7984019, 23952057, 71856171]

約数ペア:

[(1, 71856171), (3, 23952057), (9, 7984019), (29, 2477799), (31, 2317941), (83, 865737), (87, 825933), (93, 772647), (107, 671553), (249, 288579), (261, 275311), (279, 257549), (321, 223851), (747, 96193), (899, 79929), (963, 74617), (2407, 29853), (2573, 27927), (2697, 26643), (3103, 23157), (3317, 21663), (7221, 9951), (7719, 9309), (8091, 8881)]