19679967

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{523}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 29509584

約数和(自身を除く): 9829617

約数列:

[1, 3, 9, 37, 111, 113, 333, 339, 523, 1017, 1569, 4181, 4707, 12543, 19351, 37629, 58053, 59099, 174159, 177297, 531891, 2186663, 6559989, 19679967]

約数ペア:

[(1, 19679967), (3, 6559989), (9, 2186663), (37, 531891), (111, 177297), (113, 174159), (333, 59099), (339, 58053), (523, 37629), (1017, 19351), (1569, 12543), (4181, 4707)]