21373669168

素因数分解:

$2^4\times {\mathrm{3259}}^1\times {\mathrm{409897}}^1$

素因数の和:413164

約数の個数: 20

約数和(自身を含む): 41424291880

約数和(自身を除く): 20050622712

約数列:

[1, 2, 4, 8, 16, 3259, 6518, 13036, 26072, 52144, 409897, 819794, 1639588, 3279176, 6558352, 1335854323, 2671708646, 5343417292, 10686834584, 21373669168]

約数ペア:

[(1, 21373669168), (2, 10686834584), (4, 5343417292), (8, 2671708646), (16, 1335854323), (3259, 6558352), (6518, 3279176), (13036, 1639588), (26072, 819794), (52144, 409897)]