21456111

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{8009}}^1$

素因数の和:8078

約数の個数: 16

約数和(自身を含む): 30758400

約数和(自身を除く): 9302289

約数列:

[1, 3, 19, 47, 57, 141, 893, 2679, 8009, 24027, 152171, 376423, 456513, 1129269, 7152037, 21456111]

約数ペア:

[(1, 21456111), (3, 7152037), (19, 1129269), (47, 456513), (57, 376423), (141, 152171), (893, 24027), (2679, 8009)]