19903203

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 30451200

約数和(自身を除く): 10547997

約数列:

[1, 3, 9, 19, 57, 171, 239, 487, 717, 1461, 2151, 4383, 4541, 9253, 13623, 27759, 40869, 83277, 116393, 349179, 1047537, 2211467, 6634401, 19903203]

約数ペア:

[(1, 19903203), (3, 6634401), (9, 2211467), (19, 1047537), (57, 349179), (171, 116393), (239, 83277), (487, 40869), (717, 27759), (1461, 13623), (2151, 9253), (4383, 4541)]