20767905

素因数分解:

$3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1931}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 36167040

約数和(自身を除く): 15399135

約数列:

[1, 3, 5, 9, 15, 45, 239, 717, 1195, 1931, 2151, 3585, 5793, 9655, 10755, 17379, 28965, 86895, 461509, 1384527, 2307545, 4153581, 6922635, 20767905]

約数ペア:

[(1, 20767905), (3, 6922635), (5, 4153581), (9, 2307545), (15, 1384527), (45, 461509), (239, 86895), (717, 28965), (1195, 17379), (1931, 10755), (2151, 9655), (3585, 5793)]