20820724

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{239}}^1\times {\mathrm{751}}^1$

素因数の和:1023

約数の個数: 24

約数和(自身を含む): 37900800

約数和(自身を除く): 17080076

約数列:

[1, 2, 4, 29, 58, 116, 239, 478, 751, 956, 1502, 3004, 6931, 13862, 21779, 27724, 43558, 87116, 179489, 358978, 717956, 5205181, 10410362, 20820724]

約数ペア:

[(1, 20820724), (2, 10410362), (4, 5205181), (29, 717956), (58, 358978), (116, 179489), (239, 87116), (478, 43558), (751, 27724), (956, 21779), (1502, 13862), (3004, 6931)]