19662591

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{631}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 30578688

約数和(自身を除く): 10916097

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 631, 663, 799, 1833, 1893, 2397, 8203, 10387, 10727, 24609, 29657, 31161, 32181, 88971, 139451, 385541, 418353, 504169, 1156623, 1512507, 6554197, 19662591]

約数ペア:

[(1, 19662591), (3, 6554197), (13, 1512507), (17, 1156623), (39, 504169), (47, 418353), (51, 385541), (141, 139451), (221, 88971), (611, 32181), (631, 31161), (663, 29657), (799, 24609), (1833, 10727), (1893, 10387), (2397, 8203)]