28851396

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 79097760

約数和(自身を除く): 50246364

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 139, 147, 196, 278, 294, 353, 417, 556, 588, 706, 834, 973, 1059, 1412, 1668, 1946, 2118, 2471, 2919, 3892, 4236, 4942, 5838, 6811, 7413, 9884, 11676, 13622, 14826, 17297, 20433, 27244, 29652, 34594, 40866, 49067, 51891, 69188, 81732, 98134, 103782, 147201, 196268, 207564, 294402, 343469, 588804, 686938, 1030407, 1373876, 2060814, 2404283, 4121628, 4808566, 7212849, 9617132, 14425698, 28851396]

約数ペア:

[(1, 28851396), (2, 14425698), (3, 9617132), (4, 7212849), (6, 4808566), (7, 4121628), (12, 2404283), (14, 2060814), (21, 1373876), (28, 1030407), (42, 686938), (49, 588804), (84, 343469), (98, 294402), (139, 207564), (147, 196268), (196, 147201), (278, 103782), (294, 98134), (353, 81732), (417, 69188), (556, 51891), (588, 49067), (706, 40866), (834, 34594), (973, 29652), (1059, 27244), (1412, 20433), (1668, 17297), (1946, 14826), (2118, 13622), (2471, 11676), (2919, 9884), (3892, 7413), (4236, 6811), (4942, 5838)]