20280837

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1\times {\mathrm{769}}^1$

素因数の和:980

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 7439163

約数列:

[1, 3, 59, 149, 177, 447, 769, 2307, 8791, 26373, 45371, 114581, 136113, 343743, 6760279, 20280837]

約数ペア:

[(1, 20280837), (3, 6760279), (59, 343743), (149, 136113), (177, 114581), (447, 45371), (769, 26373), (2307, 8791)]