215580771

素因数分解:

$3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:374

約数の個数: 80

約数和(自身を含む): 391784448

約数和(自身を除く): 176203677

約数列:

[1, 3, 7, 9, 21, 23, 27, 61, 63, 69, 81, 161, 183, 189, 207, 271, 427, 483, 549, 567, 621, 813, 1281, 1403, 1449, 1647, 1863, 1897, 2439, 3843, 4209, 4347, 4941, 5691, 6233, 7317, 9821, 11529, 12627, 13041, 16531, 17073, 18699, 21951, 29463, 34587, 37881, 43631, 49593, 51219, 56097, 88389, 113643, 115717, 130893, 148779, 153657, 168291, 265167, 347151, 380213, 392679, 446337, 504873, 795501, 1041453, 1140639, 1178037, 1339011, 2661491, 3124359, 3421917, 3534111, 7984473, 9373077, 10265751, 23953419, 30797253, 71860257, 215580771]

約数ペア:

[(1, 215580771), (3, 71860257), (7, 30797253), (9, 23953419), (21, 10265751), (23, 9373077), (27, 7984473), (61, 3534111), (63, 3421917), (69, 3124359), (81, 2661491), (161, 1339011), (183, 1178037), (189, 1140639), (207, 1041453), (271, 795501), (427, 504873), (483, 446337), (549, 392679), (567, 380213), (621, 347151), (813, 265167), (1281, 168291), (1403, 153657), (1449, 148779), (1647, 130893), (1863, 115717), (1897, 113643), (2439, 88389), (3843, 56097), (4209, 51219), (4347, 49593), (4941, 43631), (5691, 37881), (6233, 34587), (7317, 29463), (9821, 21951), (11529, 18699), (12627, 17073), (13041, 16531)]