21755835

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28439}}^1$

素因数の和:28467

約数の個数: 24

約数和(自身を含む): 39929760

約数和(自身を除く): 18173925

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28439, 85317, 142195, 255951, 426585, 483463, 1279755, 1450389, 2417315, 4351167, 7251945, 21755835]

約数ペア:

[(1, 21755835), (3, 7251945), (5, 4351167), (9, 2417315), (15, 1450389), (17, 1279755), (45, 483463), (51, 426585), (85, 255951), (153, 142195), (255, 85317), (765, 28439)]