20686535

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12809}}^1$

素因数の和:12850

約数の個数: 16

約数和(自身を含む): 27669600

約数和(自身を除く): 6983065

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12809, 64045, 217753, 243371, 1088765, 1216855, 4137307, 20686535]

約数ペア:

[(1, 20686535), (5, 4137307), (17, 1216855), (19, 1088765), (85, 243371), (95, 217753), (323, 64045), (1615, 12809)]