12210989

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:476

約数の個数: 16

約数和(自身を含む): 14439936

約数和(自身を除く): 2228947

約数列:

[1, 7, 41, 157, 271, 287, 1099, 1897, 6437, 11111, 42547, 45059, 77777, 297829, 1744427, 12210989]

約数ペア:

[(1, 12210989), (7, 1744427), (41, 297829), (157, 77777), (271, 45059), (287, 42547), (1099, 11111), (1897, 6437)]