21234895108

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20497003}}^1$

素因数の和:20497051

約数の個数: 24

約数和(自身を含む): 43617624512

約数和(自身を除く): 22382729404

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20497003, 40994006, 81988012, 143479021, 286958042, 573916084, 758389111, 1516778222, 3033556444, 5308723777, 10617447554, 21234895108]

約数ペア:

[(1, 21234895108), (2, 10617447554), (4, 5308723777), (7, 3033556444), (14, 1516778222), (28, 758389111), (37, 573916084), (74, 286958042), (148, 143479021), (259, 81988012), (518, 40994006), (1036, 20497003)]