12820407

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:247

約数の個数: 32

約数和(自身を含む): 19008000

約数和(自身を除く): 6187593

約数列:

[1, 3, 23, 29, 43, 69, 87, 129, 149, 447, 667, 989, 1247, 2001, 2967, 3427, 3741, 4321, 6407, 10281, 12963, 19221, 28681, 86043, 99383, 147361, 185803, 298149, 442083, 557409, 4273469, 12820407]

約数ペア:

[(1, 12820407), (3, 4273469), (23, 557409), (29, 442083), (43, 298149), (69, 185803), (87, 147361), (129, 99383), (149, 86043), (447, 28681), (667, 19221), (989, 12963), (1247, 10281), (2001, 6407), (2967, 4321), (3427, 3741)]