20886003

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1861}}^1$

素因数の和:1939

約数の個数: 24

約数和(自身を含む): 31951920

約数和(自身を除く): 11065917

約数列:

[1, 3, 9, 29, 43, 87, 129, 261, 387, 1247, 1861, 3741, 5583, 11223, 16749, 53969, 80023, 161907, 240069, 485721, 720207, 2320667, 6962001, 20886003]

約数ペア:

[(1, 20886003), (3, 6962001), (9, 2320667), (29, 720207), (43, 485721), (87, 240069), (129, 161907), (261, 80023), (387, 53969), (1247, 16749), (1861, 11223), (3741, 5583)]