20461518

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:92

約数の個数: 192

約数和(自身を含む): 62380800

約数和(自身を除く): 41919282

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 19, 21, 22, 27, 33, 37, 38, 42, 49, 54, 57, 63, 66, 74, 77, 98, 99, 111, 114, 126, 133, 147, 154, 171, 189, 198, 209, 222, 231, 259, 266, 294, 297, 333, 342, 378, 399, 407, 418, 441, 462, 513, 518, 539, 594, 627, 666, 693, 703, 777, 798, 814, 882, 931, 999, 1026, 1078, 1197, 1221, 1254, 1323, 1386, 1406, 1463, 1554, 1617, 1813, 1862, 1881, 1998, 2079, 2109, 2331, 2394, 2442, 2646, 2793, 2849, 2926, 3234, 3591, 3626, 3663, 3762, 4158, 4218, 4389, 4662, 4851, 4921, 5439, 5586, 5643, 5698, 6327, 6993, 7182, 7326, 7733, 8379, 8547, 8778, 9702, 9842, 10241, 10878, 10989, 11286, 12654, 13167, 13986, 14553, 14763, 15466, 16317, 16758, 17094, 18981, 19943, 20482, 21978, 23199, 25137, 25641, 26334, 29106, 29526, 30723, 32634, 34447, 37962, 39501, 39886, 44289, 46398, 48951, 50274, 51282, 54131, 59829, 61446, 68894, 69597, 76923, 79002, 88578, 92169, 97902, 103341, 108262, 119658, 132867, 139194, 153846, 162393, 179487, 184338, 206682, 208791, 265734, 276507, 310023, 324786, 358974, 378917, 417582, 487179, 538461, 553014, 620046, 757834, 930069, 974358, 1076922, 1136751, 1461537, 1860138, 2273502, 2923074, 3410253, 6820506, 10230759, 20461518]

約数ペア:

[(1, 20461518), (2, 10230759), (3, 6820506), (6, 3410253), (7, 2923074), (9, 2273502), (11, 1860138), (14, 1461537), (18, 1136751), (19, 1076922), (21, 974358), (22, 930069), (27, 757834), (33, 620046), (37, 553014), (38, 538461), (42, 487179), (49, 417582), (54, 378917), (57, 358974), (63, 324786), (66, 310023), (74, 276507), (77, 265734), (98, 208791), (99, 206682), (111, 184338), (114, 179487), (126, 162393), (133, 153846), (147, 139194), (154, 132867), (171, 119658), (189, 108262), (198, 103341), (209, 97902), (222, 92169), (231, 88578), (259, 79002), (266, 76923), (294, 69597), (297, 68894), (333, 61446), (342, 59829), (378, 54131), (399, 51282), (407, 50274), (418, 48951), (441, 46398), (462, 44289), (513, 39886), (518, 39501), (539, 37962), (594, 34447), (627, 32634), (666, 30723), (693, 29526), (703, 29106), (777, 26334), (798, 25641), (814, 25137), (882, 23199), (931, 21978), (999, 20482), (1026, 19943), (1078, 18981), (1197, 17094), (1221, 16758), (1254, 16317), (1323, 15466), (1386, 14763), (1406, 14553), (1463, 13986), (1554, 13167), (1617, 12654), (1813, 11286), (1862, 10989), (1881, 10878), (1998, 10241), (2079, 9842), (2109, 9702), (2331, 8778), (2394, 8547), (2442, 8379), (2646, 7733), (2793, 7326), (2849, 7182), (2926, 6993), (3234, 6327), (3591, 5698), (3626, 5643), (3663, 5586), (3762, 5439), (4158, 4921), (4218, 4851), (4389, 4662)]