19620219

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1571}}^1$

素因数の和:1778

約数の個数: 16

約数和(自身を含む): 27465984

約数和(自身を除く): 7845765

約数列:

[1, 3, 23, 69, 181, 543, 1571, 4163, 4713, 12489, 36133, 108399, 284351, 853053, 6540073, 19620219]

約数ペア:

[(1, 19620219), (3, 6540073), (23, 853053), (69, 284351), (181, 108399), (543, 36133), (1571, 12489), (4163, 4713)]