20453709

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{1277}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 28831680

約数和(自身を除く): 8377971

約数列:

[1, 3, 19, 57, 281, 843, 1277, 3831, 5339, 16017, 24263, 72789, 358837, 1076511, 6817903, 20453709]

約数ペア:

[(1, 20453709), (3, 6817903), (19, 1076511), (57, 358837), (281, 72789), (843, 24263), (1277, 16017), (3831, 5339)]