18964089

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 28304640

約数和(自身を除く): 9340551

約数列:

[1, 3, 9, 53, 83, 159, 249, 477, 479, 747, 1437, 4311, 4399, 13197, 25387, 39591, 39757, 76161, 119271, 228483, 357813, 2107121, 6321363, 18964089]

約数ペア:

[(1, 18964089), (3, 6321363), (9, 2107121), (53, 357813), (83, 228483), (159, 119271), (249, 76161), (477, 39757), (479, 39591), (747, 25387), (1437, 13197), (4311, 4399)]