1620781191

素因数分解:

$3^3\times {\mathrm{1373}}^1\times {\mathrm{43721}}^1$

素因数の和:45103

約数の個数: 16

約数和(自身を含む): 2402961120

約数和(自身を除く): 782179929

約数列:

[1, 3, 9, 27, 1373, 4119, 12357, 37071, 43721, 131163, 393489, 1180467, 60028933, 180086799, 540260397, 1620781191]

約数ペア:

[(1, 1620781191), (3, 540260397), (9, 180086799), (27, 60028933), (1373, 1180467), (4119, 393489), (12357, 131163), (37071, 43721)]