20681565

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{23369}}^1$

素因数の和:23436

約数の個数: 16

約数和(自身を含む): 33652800

約数和(自身を除く): 12971235

約数列:

[1, 3, 5, 15, 59, 177, 295, 885, 23369, 70107, 116845, 350535, 1378771, 4136313, 6893855, 20681565]

約数ペア:

[(1, 20681565), (3, 6893855), (5, 4136313), (15, 1378771), (59, 350535), (177, 116845), (295, 70107), (885, 23369)]