28355067

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 47331648

約数和(自身を除く): 18976581

約数列:

[1, 3, 9, 13, 23, 39, 41, 69, 117, 123, 207, 257, 299, 369, 533, 771, 897, 943, 1599, 2313, 2691, 2829, 3341, 4797, 5911, 8487, 10023, 10537, 12259, 17733, 30069, 31611, 36777, 53199, 76843, 94833, 110331, 136981, 230529, 242351, 410943, 691587, 727053, 1232829, 2181159, 3150563, 9451689, 28355067]

約数ペア:

[(1, 28355067), (3, 9451689), (9, 3150563), (13, 2181159), (23, 1232829), (39, 727053), (41, 691587), (69, 410943), (117, 242351), (123, 230529), (207, 136981), (257, 110331), (299, 94833), (369, 76843), (533, 53199), (771, 36777), (897, 31611), (943, 30069), (1599, 17733), (2313, 12259), (2691, 10537), (2829, 10023), (3341, 8487), (4797, 5911)]