18171921

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{5281}}^1$

素因数の和:5352

約数の個数: 16

約数和(自身を含む): 25691648

約数和(自身を除く): 7519727

約数列:

[1, 3, 31, 37, 93, 111, 1147, 3441, 5281, 15843, 163711, 195397, 491133, 586191, 6057307, 18171921]

約数ペア:

[(1, 18171921), (3, 6057307), (31, 586191), (37, 491133), (93, 195397), (111, 163711), (1147, 15843), (3441, 5281)]