21365375

素因数分解:

$5^3\times {\mathrm{59}}^1\times {\mathrm{2897}}^1$

素因数の和:2971

約数の個数: 16

約数和(自身を含む): 27125280

約数和(自身を除く): 5759905

約数列:

[1, 5, 25, 59, 125, 295, 1475, 2897, 7375, 14485, 72425, 170923, 362125, 854615, 4273075, 21365375]

約数ペア:

[(1, 21365375), (5, 4273075), (25, 854615), (59, 362125), (125, 170923), (295, 72425), (1475, 14485), (2897, 7375)]