19866133

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1103}}^1$

素因数の和:1224

約数の個数: 16

約数和(自身を含む): 23740416

約数和(自身を除く): 3874283

約数列:

[1, 7, 31, 83, 217, 581, 1103, 2573, 7721, 18011, 34193, 91549, 239351, 640843, 2838019, 19866133]

約数ペア:

[(1, 19866133), (7, 2838019), (31, 640843), (83, 239351), (217, 91549), (581, 34193), (1103, 18011), (2573, 7721)]