19999551

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{46619}}^1$

素因数の和:46646

約数の個数: 16

約数和(自身を含む): 31328640

約数和(自身を除く): 11329089

約数列:

[1, 3, 11, 13, 33, 39, 143, 429, 46619, 139857, 512809, 606047, 1538427, 1818141, 6666517, 19999551]

約数ペア:

[(1, 19999551), (3, 6666517), (11, 1818141), (13, 1538427), (33, 606047), (39, 512809), (143, 139857), (429, 46619)]