20988838

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1873}}^1$

素因数の和:2319

約数の個数: 16

約数和(自身を含む): 34001856

約数和(自身を除く): 13013018

約数列:

[1, 2, 13, 26, 431, 862, 1873, 3746, 5603, 11206, 24349, 48698, 807263, 1614526, 10494419, 20988838]

約数ペア:

[(1, 20988838), (2, 10494419), (13, 1614526), (26, 807263), (431, 48698), (862, 24349), (1873, 11206), (3746, 5603)]