20369565

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9631}}^1$

素因数の和:9689

約数の個数: 24

約数和(自身を含む): 36062208

約数和(自身を除く): 15692643

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9631, 28893, 48155, 86679, 144465, 433395, 452657, 1357971, 2263285, 4073913, 6789855, 20369565]

約数ペア:

[(1, 20369565), (3, 6789855), (5, 4073913), (9, 2263285), (15, 1357971), (45, 452657), (47, 433395), (141, 144465), (235, 86679), (423, 48155), (705, 28893), (2115, 9631)]