20287665

素因数分解:

$3^4\times 5^1\times {\mathrm{50093}}^1$

素因数の和:50110

約数の個数: 20

約数和(自身を含む): 36368244

約数和(自身を除く): 16080579

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 50093, 150279, 250465, 450837, 751395, 1352511, 2254185, 4057533, 6762555, 20287665]

約数ペア:

[(1, 20287665), (3, 6762555), (5, 4057533), (9, 2254185), (15, 1352511), (27, 751395), (45, 450837), (81, 250465), (135, 150279), (405, 50093)]