18228969

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:563

約数の個数: 40

約数和(自身を含む): 30492000

約数和(自身を除く): 12263031

約数列:

[1, 3, 9, 11, 27, 33, 41, 81, 99, 123, 297, 369, 451, 499, 891, 1107, 1353, 1497, 3321, 4059, 4491, 5489, 12177, 13473, 16467, 20459, 36531, 40419, 49401, 61377, 148203, 184131, 225049, 444609, 552393, 675147, 1657179, 2025441, 6076323, 18228969]

約数ペア:

[(1, 18228969), (3, 6076323), (9, 2025441), (11, 1657179), (27, 675147), (33, 552393), (41, 444609), (81, 225049), (99, 184131), (123, 148203), (297, 61377), (369, 49401), (451, 40419), (499, 36531), (891, 20459), (1107, 16467), (1353, 13473), (1497, 12177), (3321, 5489), (4059, 4491)]