12999213

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 19468800

約数和(自身を除く): 6469587

約数列:

[1, 3, 9, 47, 79, 141, 237, 389, 423, 711, 1167, 3501, 3713, 11139, 18283, 30731, 33417, 54849, 92193, 164547, 276579, 1444357, 4333071, 12999213]

約数ペア:

[(1, 12999213), (3, 4333071), (9, 1444357), (47, 276579), (79, 164547), (141, 92193), (237, 54849), (389, 33417), (423, 30731), (711, 18283), (1167, 11139), (3501, 3713)]