261140031

素因数分解:

$3^4\times {\mathrm{1151}}^1\times {\mathrm{2801}}^1$

素因数の和:3964

約数の個数: 20

約数和(自身を含む): 390576384

約数和(自身を除く): 129436353

約数列:

[1, 3, 9, 27, 81, 1151, 2801, 3453, 8403, 10359, 25209, 31077, 75627, 93231, 226881, 3223951, 9671853, 29015559, 87046677, 261140031]

約数ペア:

[(1, 261140031), (3, 87046677), (9, 29015559), (27, 9671853), (81, 3223951), (1151, 226881), (2801, 93231), (3453, 75627), (8403, 31077), (10359, 25209)]