19943571

素因数分解:

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

素因数の和:1802

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 7732077

約数列:

[1, 3, 31, 93, 131, 393, 1637, 4061, 4911, 12183, 50747, 152241, 214447, 643341, 6647857, 19943571]

約数ペア:

[(1, 19943571), (3, 6647857), (31, 643341), (93, 214447), (131, 152241), (393, 50747), (1637, 12183), (4061, 4911)]