1977858207

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{1300367}}^1$

素因数の和:1300399

約数の個数: 18

約数和(自身を含む): 3093575472

約数和(自身を除く): 1115717265

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 1300367, 3901101, 11703303, 16904771, 50714313, 152142939, 219762023, 659286069, 1977858207]

約数ペア:

[(1, 1977858207), (3, 659286069), (9, 219762023), (13, 152142939), (39, 50714313), (117, 16904771), (169, 11703303), (507, 3901101), (1521, 1300367)]