19972395

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{839}}^1$

素因数の和:896

約数の個数: 36

約数和(自身を含む): 36232560

約数和(自身を除く): 16260165

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 529, 839, 1035, 1587, 2517, 2645, 4195, 4761, 7551, 7935, 12585, 19297, 23805, 37755, 57891, 96485, 173673, 289455, 443831, 868365, 1331493, 2219155, 3994479, 6657465, 19972395]

約数ペア:

[(1, 19972395), (3, 6657465), (5, 3994479), (9, 2219155), (15, 1331493), (23, 868365), (45, 443831), (69, 289455), (115, 173673), (207, 96485), (345, 57891), (529, 37755), (839, 23805), (1035, 19297), (1587, 12585), (2517, 7935), (2645, 7551), (4195, 4761)]