13239219

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{33181}}^1$

素因数の和:33210

約数の個数: 16

約数和(自身を含む): 21236480

約数和(自身を除く): 7997261

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 33181, 99543, 232267, 630439, 696801, 1891317, 4413073, 13239219]

約数ペア:

[(1, 13239219), (3, 4413073), (7, 1891317), (19, 696801), (21, 630439), (57, 232267), (133, 99543), (399, 33181)]