19737289

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 25691904

約数和(自身を除く): 5954615

約数列:

[1, 11, 13, 17, 23, 143, 187, 221, 253, 299, 353, 391, 2431, 3289, 3883, 4301, 4589, 5083, 6001, 8119, 50479, 55913, 66011, 78013, 89309, 105547, 138023, 858143, 1161017, 1518253, 1794299, 19737289]

約数ペア:

[(1, 19737289), (11, 1794299), (13, 1518253), (17, 1161017), (23, 858143), (143, 138023), (187, 105547), (221, 89309), (253, 78013), (299, 66011), (353, 55913), (391, 50479), (2431, 8119), (3289, 6001), (3883, 5083), (4301, 4589)]