20129902

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7103}}^1$

素因数の和:7227

約数の個数: 16

約数和(自身を含む): 32820480

約数和(自身を除く): 12690578

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7103, 14206, 92339, 184678, 774227, 1548454, 10064951, 20129902]

約数ペア:

[(1, 20129902), (2, 10064951), (13, 1548454), (26, 774227), (109, 184678), (218, 92339), (1417, 14206), (2834, 7103)]