21808368

素因数分解:

$2^4\times 3^2\times {\mathrm{269}}^1\times {\mathrm{563}}^1$

素因数の和:846

約数の個数: 60

約数和(自身を含む): 61368840

約数和(自身を除く): 39560472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 269, 538, 563, 807, 1076, 1126, 1614, 1689, 2152, 2252, 2421, 3228, 3378, 4304, 4504, 4842, 5067, 6456, 6756, 9008, 9684, 10134, 12912, 13512, 19368, 20268, 27024, 38736, 40536, 81072, 151447, 302894, 454341, 605788, 908682, 1211576, 1363023, 1817364, 2423152, 2726046, 3634728, 5452092, 7269456, 10904184, 21808368]

約数ペア:

[(1, 21808368), (2, 10904184), (3, 7269456), (4, 5452092), (6, 3634728), (8, 2726046), (9, 2423152), (12, 1817364), (16, 1363023), (18, 1211576), (24, 908682), (36, 605788), (48, 454341), (72, 302894), (144, 151447), (269, 81072), (538, 40536), (563, 38736), (807, 27024), (1076, 20268), (1126, 19368), (1614, 13512), (1689, 12912), (2152, 10134), (2252, 9684), (2421, 9008), (3228, 6756), (3378, 6456), (4304, 5067), (4504, 4842)]