20943949

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{977}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 24152688

約数和(自身を除く): 3208739

約数列:

[1, 13, 17, 97, 221, 977, 1261, 1649, 12701, 16609, 21437, 94769, 215917, 1231997, 1611073, 20943949]

約数ペア:

[(1, 20943949), (13, 1611073), (17, 1231997), (97, 215917), (221, 94769), (977, 21437), (1261, 16609), (1649, 12701)]