212839497

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 345618000

約数和(自身を除く): 132778503

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 149, 261, 377, 421, 447, 1131, 1263, 1341, 1937, 3393, 3789, 4321, 5473, 5811, 12209, 12963, 16419, 17433, 36627, 38889, 49257, 56173, 62729, 109881, 158717, 168519, 188187, 476151, 505557, 564561, 815477, 1428453, 1819141, 2446431, 5457423, 7339293, 16372269, 23648833, 70946499, 212839497]

約数ペア:

[(1, 212839497), (3, 70946499), (9, 23648833), (13, 16372269), (29, 7339293), (39, 5457423), (87, 2446431), (117, 1819141), (149, 1428453), (261, 815477), (377, 564561), (421, 505557), (447, 476151), (1131, 188187), (1263, 168519), (1341, 158717), (1937, 109881), (3393, 62729), (3789, 56173), (4321, 49257), (5473, 38889), (5811, 36627), (12209, 17433), (12963, 16419)]