20858505

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1447}}^1$

素因数の和:1517

約数の個数: 24

約数和(自身を含む): 34508736

約数和(自身を除く): 13650231

約数列:

[1, 3, 5, 15, 31, 93, 155, 465, 961, 1447, 2883, 4341, 4805, 7235, 14415, 21705, 44857, 134571, 224285, 672855, 1390567, 4171701, 6952835, 20858505]

約数ペア:

[(1, 20858505), (3, 6952835), (5, 4171701), (15, 1390567), (31, 672855), (93, 224285), (155, 134571), (465, 44857), (961, 21705), (1447, 14415), (2883, 7235), (4341, 4805)]