19804719

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^2$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 29682432

約数和(自身を除く): 9877713

約数列:

[1, 3, 11, 33, 47, 113, 141, 339, 517, 1243, 1551, 3729, 5311, 12769, 15933, 38307, 58421, 140459, 175263, 421377, 600143, 1800429, 6601573, 19804719]

約数ペア:

[(1, 19804719), (3, 6601573), (11, 1800429), (33, 600143), (47, 421377), (113, 175263), (141, 140459), (339, 58421), (517, 38307), (1243, 15933), (1551, 12769), (3729, 5311)]