21051176

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{379}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 40629600

約数和(自身を除く): 19578424

約数列:

[1, 2, 4, 8, 53, 106, 131, 212, 262, 379, 424, 524, 758, 1048, 1516, 3032, 6943, 13886, 20087, 27772, 40174, 49649, 55544, 80348, 99298, 160696, 198596, 397192, 2631397, 5262794, 10525588, 21051176]

約数ペア:

[(1, 21051176), (2, 10525588), (4, 5262794), (8, 2631397), (53, 397192), (106, 198596), (131, 160696), (212, 99298), (262, 80348), (379, 55544), (424, 49649), (524, 40174), (758, 27772), (1048, 20087), (1516, 13886), (3032, 6943)]