18228213

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 10283787

約数列:

[1, 3, 9, 23, 27, 69, 149, 197, 207, 447, 591, 621, 1341, 1773, 3427, 4023, 4531, 5319, 10281, 13593, 29353, 30843, 40779, 88059, 92529, 122337, 264177, 675119, 792531, 2025357, 6076071, 18228213]

約数ペア:

[(1, 18228213), (3, 6076071), (9, 2025357), (23, 792531), (27, 675119), (69, 264177), (149, 122337), (197, 92529), (207, 88059), (447, 40779), (591, 30843), (621, 29353), (1341, 13593), (1773, 10281), (3427, 5319), (4023, 4531)]