21619364

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2297}}^1$

素因数の和:2495

約数の個数: 24

約数和(自身を含む): 40987128

約数和(自身を除く): 19367764

約数列:

[1, 2, 4, 13, 26, 52, 181, 362, 724, 2297, 2353, 4594, 4706, 9188, 9412, 29861, 59722, 119444, 415757, 831514, 1663028, 5404841, 10809682, 21619364]

約数ペア:

[(1, 21619364), (2, 10809682), (4, 5404841), (13, 1663028), (26, 831514), (52, 415757), (181, 119444), (362, 59722), (724, 29861), (2297, 9412), (2353, 9188), (4594, 4706)]