20809558

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{829}}^1$

素因数の和:1012

約数の個数: 32

約数和(自身を含む): 39202560

約数和(自身を除く): 18393002

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 163, 326, 829, 1141, 1658, 1793, 2282, 3586, 5803, 9119, 11606, 12551, 18238, 25102, 63833, 127666, 135127, 270254, 945889, 1486397, 1891778, 2972794, 10404779, 20809558]

約数ペア:

[(1, 20809558), (2, 10404779), (7, 2972794), (11, 1891778), (14, 1486397), (22, 945889), (77, 270254), (154, 135127), (163, 127666), (326, 63833), (829, 25102), (1141, 18238), (1658, 12551), (1793, 11606), (2282, 9119), (3586, 5803)]