1980531

素因数分解:

$3^4\times 7^2\times {\mathrm{499}}^1$

素因数の和:525

約数の個数: 30

約数和(自身を含む): 3448500

約数和(自身を除く): 1467969

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 499, 567, 1323, 1497, 3493, 3969, 4491, 10479, 13473, 24451, 31437, 40419, 73353, 94311, 220059, 282933, 660177, 1980531]

約数ペア:

[(1, 1980531), (3, 660177), (7, 282933), (9, 220059), (21, 94311), (27, 73353), (49, 40419), (63, 31437), (81, 24451), (147, 13473), (189, 10479), (441, 4491), (499, 3969), (567, 3493), (1323, 1497)]