20213175

素因数分解:

$3^1\times 5^2\times {\mathrm{181}}^1\times {\mathrm{1489}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 33626320

約数和(自身を除く): 13413145

約数列:

[1, 3, 5, 15, 25, 75, 181, 543, 905, 1489, 2715, 4467, 4525, 7445, 13575, 22335, 37225, 111675, 269509, 808527, 1347545, 4042635, 6737725, 20213175]

約数ペア:

[(1, 20213175), (3, 6737725), (5, 4042635), (15, 1347545), (25, 808527), (75, 269509), (181, 111675), (543, 37225), (905, 22335), (1489, 13575), (2715, 7445), (4467, 4525)]