1640343879

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{154589}}^1$

素因数の和:154732

約数の個数: 20

約数和(自身を含む): 2469111480

約数和(自身を除く): 828767601

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 3537, 10611, 154589, 463767, 1391301, 4173903, 12521709, 20251159, 60753477, 182260431, 546781293, 1640343879]

約数ペア:

[(1, 1640343879), (3, 546781293), (9, 182260431), (27, 60753477), (81, 20251159), (131, 12521709), (393, 4173903), (1179, 1391301), (3537, 463767), (10611, 154589)]