20163

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:74

約数の個数: 16

約数和(自身を含む): 32256

約数和(自身を除く): 12093

約数列:

[1, 3, 11, 13, 33, 39, 47, 141, 143, 429, 517, 611, 1551, 1833, 6721, 20163]

約数ペア:

[(1, 20163), (3, 6721), (11, 1833), (13, 1551), (33, 611), (39, 517), (47, 429), (141, 143)]