1209655539

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{786001}}^1$

素因数の和:786032

約数の個数: 20

約数和(自身を含む): 1902124840

約数和(自身を除く): 692469301

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 786001, 2358003, 7074009, 14934019, 21222027, 44802057, 63666081, 134406171, 403218513, 1209655539]

約数ペア:

[(1, 1209655539), (3, 403218513), (9, 134406171), (19, 63666081), (27, 44802057), (57, 21222027), (81, 14934019), (171, 7074009), (513, 2358003), (1539, 786001)]