20018355

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2297}}^1$

素因数の和:2395

約数の個数: 32

約数和(自身を含む): 37062144

約数和(自身を除く): 17043789

約数列:

[1, 3, 5, 7, 15, 21, 35, 83, 105, 249, 415, 581, 1245, 1743, 2297, 2905, 6891, 8715, 11485, 16079, 34455, 48237, 80395, 190651, 241185, 571953, 953255, 1334557, 2859765, 4003671, 6672785, 20018355]

約数ペア:

[(1, 20018355), (3, 6672785), (5, 4003671), (7, 2859765), (15, 1334557), (21, 953255), (35, 571953), (83, 241185), (105, 190651), (249, 80395), (415, 48237), (581, 34455), (1245, 16079), (1743, 11485), (2297, 8715), (2905, 6891)]