21132855

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15149}}^1$

素因数の和:15191

約数の個数: 24

約数和(自身を含む): 37814400

約数和(自身を除く): 16681545

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15149, 45447, 75745, 136341, 227235, 469619, 681705, 1408857, 2348095, 4226571, 7044285, 21132855]

約数ペア:

[(1, 21132855), (3, 7044285), (5, 4226571), (9, 2348095), (15, 1408857), (31, 681705), (45, 469619), (93, 227235), (155, 136341), (279, 75745), (465, 45447), (1395, 15149)]