21409156699

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{991}}^1\times {\mathrm{1279}}^1$

素因数の和:2423

約数の個数: 32

約数和(自身を含む): 26004684800

約数和(自身を除く): 4595528101

約数列:

[1, 7, 19, 127, 133, 889, 991, 1279, 2413, 6937, 8953, 16891, 18829, 24301, 125857, 131803, 162433, 170107, 880999, 1137031, 1267489, 2391283, 3086227, 8872423, 16738981, 21603589, 24082291, 160971103, 168576037, 1126797721, 3058450957, 21409156699]

約数ペア:

[(1, 21409156699), (7, 3058450957), (19, 1126797721), (127, 168576037), (133, 160971103), (889, 24082291), (991, 21603589), (1279, 16738981), (2413, 8872423), (6937, 3086227), (8953, 2391283), (16891, 1267489), (18829, 1137031), (24301, 880999), (125857, 170107), (131803, 162433)]