39967557

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{9661}}^1$

素因数の和:9868

約数の個数: 16

約数和(自身を含む): 61218432

約数和(自身を除く): 21250875

約数列:

[1, 3, 7, 21, 197, 591, 1379, 4137, 9661, 28983, 67627, 202881, 1903217, 5709651, 13322519, 39967557]

約数ペア:

[(1, 39967557), (3, 13322519), (7, 5709651), (21, 1903217), (197, 202881), (591, 67627), (1379, 28983), (4137, 9661)]