640527621

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{719}}^1\times {\mathrm{12911}}^1$

素因数の和:13656

約数の個数: 16

約数和(自身を含む): 892477440

約数和(自身を除く): 251949819

約数列:

[1, 3, 23, 69, 719, 2157, 12911, 16537, 38733, 49611, 296953, 890859, 9283009, 27849027, 213509207, 640527621]

約数ペア:

[(1, 640527621), (3, 213509207), (23, 27849027), (69, 9283009), (719, 890859), (2157, 296953), (12911, 49611), (16537, 38733)]