16039989

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 28114944

約数和(自身を除く): 12074955

約数列:

[1, 3, 7, 9, 21, 31, 43, 63, 93, 129, 191, 217, 279, 301, 387, 573, 651, 903, 1333, 1337, 1719, 1953, 2709, 3999, 4011, 5921, 8213, 9331, 11997, 12033, 17763, 24639, 27993, 41447, 53289, 57491, 73917, 83979, 124341, 172473, 254603, 373023, 517419, 763809, 1782221, 2291427, 5346663, 16039989]

約数ペア:

[(1, 16039989), (3, 5346663), (7, 2291427), (9, 1782221), (21, 763809), (31, 517419), (43, 373023), (63, 254603), (93, 172473), (129, 124341), (191, 83979), (217, 73917), (279, 57491), (301, 53289), (387, 41447), (573, 27993), (651, 24639), (903, 17763), (1333, 12033), (1337, 11997), (1719, 9331), (1953, 8213), (2709, 5921), (3999, 4011)]