20214428

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1759}}^1$

素因数の和:1806

約数の個数: 36

約数和(自身を含む): 40582080

約数和(自身を除く): 20367652

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1759, 2873, 3518, 5746, 7036, 11492, 22867, 29903, 45734, 59806, 91468, 119612, 297271, 388739, 594542, 777478, 1189084, 1554956, 5053607, 10107214, 20214428]

約数ペア:

[(1, 20214428), (2, 10107214), (4, 5053607), (13, 1554956), (17, 1189084), (26, 777478), (34, 594542), (52, 388739), (68, 297271), (169, 119612), (221, 91468), (338, 59806), (442, 45734), (676, 29903), (884, 22867), (1759, 11492), (2873, 7036), (3518, 5746)]