21549801

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{409}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 35633920

約数和(自身を除く): 14084119

約数列:

[1, 3, 7, 13, 21, 39, 91, 193, 273, 409, 579, 1227, 1351, 2509, 2863, 4053, 5317, 7527, 8589, 15951, 17563, 37219, 52689, 78937, 111657, 236811, 552559, 1026181, 1657677, 3078543, 7183267, 21549801]

約数ペア:

[(1, 21549801), (3, 7183267), (7, 3078543), (13, 1657677), (21, 1026181), (39, 552559), (91, 236811), (193, 111657), (273, 78937), (409, 52689), (579, 37219), (1227, 17563), (1351, 15951), (2509, 8589), (2863, 7527), (4053, 5317)]