20286916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 41341104

約数和(自身を除く): 21054188

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 53, 68, 106, 212, 221, 433, 442, 689, 866, 884, 901, 1378, 1732, 1802, 2756, 3604, 5629, 7361, 11258, 11713, 14722, 22516, 22949, 23426, 29444, 45898, 46852, 91796, 95693, 191386, 298337, 382772, 390133, 596674, 780266, 1193348, 1560532, 5071729, 10143458, 20286916]

約数ペア:

[(1, 20286916), (2, 10143458), (4, 5071729), (13, 1560532), (17, 1193348), (26, 780266), (34, 596674), (52, 390133), (53, 382772), (68, 298337), (106, 191386), (212, 95693), (221, 91796), (433, 46852), (442, 45898), (689, 29444), (866, 23426), (884, 22949), (901, 22516), (1378, 14722), (1732, 11713), (1802, 11258), (2756, 7361), (3604, 5629)]