21204291235

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{881}}^1\times {\mathrm{1039}}^1$

素因数の和:2079

約数の個数: 32

約数和(自身を含む): 26351619840

約数和(自身を除く): 5147328605

約数列:

[1, 5, 41, 113, 205, 565, 881, 1039, 4405, 4633, 5195, 23165, 36121, 42599, 99553, 117407, 180605, 212995, 497765, 587035, 915359, 4081673, 4576795, 4813687, 20408365, 24068435, 37529719, 103435567, 187648595, 517177835, 4240858247, 21204291235]

約数ペア:

[(1, 21204291235), (5, 4240858247), (41, 517177835), (113, 187648595), (205, 103435567), (565, 37529719), (881, 24068435), (1039, 20408365), (4405, 4813687), (4633, 4576795), (5195, 4081673), (23165, 915359), (36121, 587035), (42599, 497765), (99553, 212995), (117407, 180605)]