51201615

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 85248000

約数和(自身を除く): 34046385

約数列:

[1, 3, 5, 15, 31, 93, 149, 155, 447, 465, 739, 745, 2217, 2235, 3695, 4619, 11085, 13857, 22909, 23095, 68727, 69285, 110111, 114545, 330333, 343635, 550555, 1651665, 3413441, 10240323, 17067205, 51201615]

約数ペア:

[(1, 51201615), (3, 17067205), (5, 10240323), (15, 3413441), (31, 1651665), (93, 550555), (149, 343635), (155, 330333), (447, 114545), (465, 110111), (739, 69285), (745, 68727), (2217, 23095), (2235, 22909), (3695, 13857), (4619, 11085)]