390540423

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{4099}}^1$

素因数の和:4471

約数の個数: 32

約数和(自身を含む): 642880000

約数和(自身を除く): 252339577

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 349, 1047, 2443, 4099, 4537, 7329, 12297, 13611, 28693, 31759, 53287, 86079, 95277, 159861, 373009, 1119027, 1430551, 4291653, 10013857, 18597163, 30041571, 55791489, 130180141, 390540423]

約数ペア:

[(1, 390540423), (3, 130180141), (7, 55791489), (13, 30041571), (21, 18597163), (39, 10013857), (91, 4291653), (273, 1430551), (349, 1119027), (1047, 373009), (2443, 159861), (4099, 95277), (4537, 86079), (7329, 53287), (12297, 31759), (13611, 28693)]