20661903

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{719}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 31150080

約数和(自身を除く): 10488177

約数列:

[1, 3, 9, 31, 93, 103, 279, 309, 719, 927, 2157, 3193, 6471, 9579, 22289, 28737, 66867, 74057, 200601, 222171, 666513, 2295767, 6887301, 20661903]

約数ペア:

[(1, 20661903), (3, 6887301), (9, 2295767), (31, 666513), (93, 222171), (103, 200601), (279, 74057), (309, 66867), (719, 28737), (927, 22289), (2157, 9579), (3193, 6471)]