81899481

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 120960000

約数和(自身を除く): 39060519

約数列:

[1, 3, 19, 23, 57, 69, 179, 349, 437, 537, 1047, 1311, 3401, 4117, 6631, 8027, 10203, 12351, 19893, 24081, 62471, 78223, 152513, 187413, 234669, 457539, 1186949, 1436833, 3560847, 4310499, 27299827, 81899481]

約数ペア:

[(1, 81899481), (3, 27299827), (19, 4310499), (23, 3560847), (57, 1436833), (69, 1186949), (179, 457539), (349, 234669), (437, 187413), (537, 152513), (1047, 78223), (1311, 62471), (3401, 24081), (4117, 19893), (6631, 12351), (8027, 10203)]