19478907

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4481}}^1$

素因数の和:4520

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 14942853

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 4481, 13443, 31367, 40329, 94101, 103063, 120987, 282303, 309189, 721441, 846909, 927567, 2164323, 2782701, 6492969, 19478907]

約数ペア:

[(1, 19478907), (3, 6492969), (7, 2782701), (9, 2164323), (21, 927567), (23, 846909), (27, 721441), (63, 309189), (69, 282303), (161, 120987), (189, 103063), (207, 94101), (483, 40329), (621, 31367), (1449, 13443), (4347, 4481)]