18910719

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 29798400

約数和(自身を除く): 10887681

約数列:

[1, 3, 9, 19, 27, 57, 171, 191, 193, 513, 573, 579, 1719, 1737, 3629, 3667, 5157, 5211, 10887, 11001, 32661, 33003, 36863, 97983, 99009, 110589, 331767, 700397, 995301, 2101191, 6303573, 18910719]

約数ペア:

[(1, 18910719), (3, 6303573), (9, 2101191), (19, 995301), (27, 700397), (57, 331767), (171, 110589), (191, 99009), (193, 97983), (513, 36863), (573, 33003), (579, 32661), (1719, 11001), (1737, 10887), (3629, 5211), (3667, 5157)]