21082412

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{2399}}^1$

素因数の和:2442

約数の個数: 24

約数和(自身を含む): 39984000

約数和(自身を除く): 18901588

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 2197, 2399, 4394, 4798, 8788, 9596, 31187, 62374, 124748, 405431, 810862, 1621724, 5270603, 10541206, 21082412]

約数ペア:

[(1, 21082412), (2, 10541206), (4, 5270603), (13, 1621724), (26, 810862), (52, 405431), (169, 124748), (338, 62374), (676, 31187), (2197, 9596), (2399, 8788), (4394, 4798)]