20149571

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 22509984

約数和(自身を除く): 2360413

約数列:

[1, 13, 37, 163, 257, 481, 2119, 3341, 6031, 9509, 41891, 78403, 123617, 544583, 1549967, 20149571]

約数ペア:

[(1, 20149571), (13, 1549967), (37, 544583), (163, 123617), (257, 78403), (481, 41891), (2119, 9509), (3341, 6031)]