21108276

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:291

約数の個数: 120

約数和(自身を含む): 64886976

約数和(自身を除く): 43778700

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 41, 42, 54, 63, 81, 82, 84, 108, 123, 126, 162, 164, 189, 227, 246, 252, 287, 324, 369, 378, 454, 492, 567, 574, 681, 738, 756, 861, 908, 1107, 1134, 1148, 1362, 1476, 1589, 1722, 2043, 2214, 2268, 2583, 2724, 3178, 3321, 3444, 4086, 4428, 4767, 5166, 6129, 6356, 6642, 7749, 8172, 9307, 9534, 10332, 12258, 13284, 14301, 15498, 18387, 18614, 19068, 23247, 24516, 27921, 28602, 30996, 36774, 37228, 42903, 46494, 55842, 57204, 65149, 73548, 83763, 85806, 92988, 111684, 128709, 130298, 167526, 171612, 195447, 251289, 257418, 260596, 335052, 390894, 502578, 514836, 586341, 753867, 781788, 1005156, 1172682, 1507734, 1759023, 2345364, 3015468, 3518046, 5277069, 7036092, 10554138, 21108276]

約数ペア:

[(1, 21108276), (2, 10554138), (3, 7036092), (4, 5277069), (6, 3518046), (7, 3015468), (9, 2345364), (12, 1759023), (14, 1507734), (18, 1172682), (21, 1005156), (27, 781788), (28, 753867), (36, 586341), (41, 514836), (42, 502578), (54, 390894), (63, 335052), (81, 260596), (82, 257418), (84, 251289), (108, 195447), (123, 171612), (126, 167526), (162, 130298), (164, 128709), (189, 111684), (227, 92988), (246, 85806), (252, 83763), (287, 73548), (324, 65149), (369, 57204), (378, 55842), (454, 46494), (492, 42903), (567, 37228), (574, 36774), (681, 30996), (738, 28602), (756, 27921), (861, 24516), (908, 23247), (1107, 19068), (1134, 18614), (1148, 18387), (1362, 15498), (1476, 14301), (1589, 13284), (1722, 12258), (2043, 10332), (2214, 9534), (2268, 9307), (2583, 8172), (2724, 7749), (3178, 6642), (3321, 6356), (3444, 6129), (4086, 5166), (4428, 4767)]