2165721

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:328

約数の個数: 16

約数和(自身を含む): 3009600

約数和(自身を除く): 843879

約数列:

[1, 3, 37, 109, 111, 179, 327, 537, 4033, 6623, 12099, 19511, 19869, 58533, 721907, 2165721]

約数ペア:

[(1, 2165721), (3, 721907), (37, 58533), (109, 19869), (111, 19511), (179, 12099), (327, 6623), (537, 4033)]