20995016

素因数分解:

$2^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4517}}^1$

素因数の和:4613

約数の個数: 32

約数和(自身を含む): 45541440

約数和(自身を除く): 24546424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 83, 166, 332, 581, 664, 1162, 2324, 4517, 4648, 9034, 18068, 31619, 36136, 63238, 126476, 252952, 374911, 749822, 1499644, 2624377, 2999288, 5248754, 10497508, 20995016]

約数ペア:

[(1, 20995016), (2, 10497508), (4, 5248754), (7, 2999288), (8, 2624377), (14, 1499644), (28, 749822), (56, 374911), (83, 252952), (166, 126476), (332, 63238), (581, 36136), (664, 31619), (1162, 18068), (2324, 9034), (4517, 4648)]