139604997

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1637}}^1$

素因数の和:1809

約数の個数: 32

約数和(自身を含む): 221405184

約数和(自身を除く): 81800187

約数列:

[1, 3, 7, 21, 31, 93, 131, 217, 393, 651, 917, 1637, 2751, 4061, 4911, 11459, 12183, 28427, 34377, 50747, 85281, 152241, 214447, 355229, 643341, 1065687, 1501129, 4503387, 6647857, 19943571, 46534999, 139604997]

約数ペア:

[(1, 139604997), (3, 46534999), (7, 19943571), (21, 6647857), (31, 4503387), (93, 1501129), (131, 1065687), (217, 643341), (393, 355229), (651, 214447), (917, 152241), (1637, 85281), (2751, 50747), (4061, 34377), (4911, 28427), (11459, 12183)]