2018379727

素因数分解:

$7^3\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1297}}^1$

素因数の和:1680

約数の個数: 32

約数和(自身を含む): 2544080000

約数和(自身を除く): 525700273

約数列:

[1, 7, 13, 49, 91, 343, 349, 637, 1297, 2443, 4459, 4537, 9079, 16861, 17101, 31759, 63553, 118027, 119707, 222313, 444871, 452653, 826189, 1556191, 3168571, 5783323, 5884489, 22179997, 41191423, 155259979, 288339961, 2018379727]

約数ペア:

[(1, 2018379727), (7, 288339961), (13, 155259979), (49, 41191423), (91, 22179997), (343, 5884489), (349, 5783323), (637, 3168571), (1297, 1556191), (2443, 826189), (4459, 452653), (4537, 444871), (9079, 222313), (16861, 119707), (17101, 118027), (31759, 63553)]