19563849

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1621}}^1$

素因数の和:1782

約数の個数: 20

約数和(自身を含む): 29439300

約数和(自身を除く): 9875451

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1621, 4023, 4863, 12069, 14589, 43767, 131301, 241529, 724587, 2173761, 6521283, 19563849]

約数ペア:

[(1, 19563849), (3, 6521283), (9, 2173761), (27, 724587), (81, 241529), (149, 131301), (447, 43767), (1341, 14589), (1621, 12069), (4023, 4863)]