19999749

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{86579}}^1$

素因数の和:86600

約数の個数: 16

約数和(自身を含む): 33246720

約数和(自身を除く): 13246971

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 86579, 259737, 606053, 952369, 1818159, 2857107, 6666583, 19999749]

約数ペア:

[(1, 19999749), (3, 6666583), (7, 2857107), (11, 1818159), (21, 952369), (33, 606053), (77, 259737), (231, 86579)]