18687051

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{499}}^1$

素因数の和:600

約数の個数: 32

約数和(自身を含む): 29600000

約数和(自身を除く): 10912949

約数列:

[1, 3, 9, 19, 27, 57, 73, 171, 219, 499, 513, 657, 1387, 1497, 1971, 4161, 4491, 9481, 12483, 13473, 28443, 36427, 37449, 85329, 109281, 255987, 327843, 692113, 983529, 2076339, 6229017, 18687051]

約数ペア:

[(1, 18687051), (3, 6229017), (9, 2076339), (19, 983529), (27, 692113), (57, 327843), (73, 255987), (171, 109281), (219, 85329), (499, 37449), (513, 36427), (657, 28443), (1387, 13473), (1497, 12483), (1971, 9481), (4161, 4491)]