1816143

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 2787840

約数和(自身を除く): 971697

約数列:

[1, 3, 7, 21, 197, 439, 591, 1317, 1379, 3073, 4137, 9219, 86483, 259449, 605381, 1816143]

約数ペア:

[(1, 1816143), (3, 605381), (7, 259449), (21, 86483), (197, 9219), (439, 4137), (591, 3073), (1317, 1379)]