256622013

素因数分解:

$3^4\times {\mathrm{661}}^1\times {\mathrm{4793}}^1$

素因数の和:5466

約数の個数: 20

約数和(自身を含む): 384008988

約数和(自身を除く): 127386975

約数列:

[1, 3, 9, 27, 81, 661, 1983, 4793, 5949, 14379, 17847, 43137, 53541, 129411, 388233, 3168173, 9504519, 28513557, 85540671, 256622013]

約数ペア:

[(1, 256622013), (3, 85540671), (9, 28513557), (27, 9504519), (81, 3168173), (661, 388233), (1983, 129411), (4793, 53541), (5949, 43137), (14379, 17847)]