21102916

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{3739}}^1$

素因数の和:3843

約数の個数: 24

約数和(自身を含む): 39584160

約数和(自身を除く): 18481244

約数列:

[1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 3739, 5644, 7478, 14956, 63563, 127126, 254252, 310337, 620674, 1241348, 5275729, 10551458, 21102916]

約数ペア:

[(1, 21102916), (2, 10551458), (4, 5275729), (17, 1241348), (34, 620674), (68, 310337), (83, 254252), (166, 127126), (332, 63563), (1411, 14956), (2822, 7478), (3739, 5644)]