20917512

素因数分解:

$2^3\times 3^2\times 7^4\times {\mathrm{11}}^2$

素因数の和:62

約数の個数: 180

約数和(自身を含む): 72643935

約数和(自身を除く): 51726423

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 28, 33, 36, 42, 44, 49, 56, 63, 66, 72, 77, 84, 88, 98, 99, 121, 126, 132, 147, 154, 168, 196, 198, 231, 242, 252, 264, 294, 308, 343, 363, 392, 396, 441, 462, 484, 504, 539, 588, 616, 686, 693, 726, 792, 847, 882, 924, 968, 1029, 1078, 1089, 1176, 1372, 1386, 1452, 1617, 1694, 1764, 1848, 2058, 2156, 2178, 2401, 2541, 2744, 2772, 2904, 3087, 3234, 3388, 3528, 3773, 4116, 4312, 4356, 4802, 4851, 5082, 5544, 5929, 6174, 6468, 6776, 7203, 7546, 7623, 8232, 8712, 9604, 9702, 10164, 11319, 11858, 12348, 12936, 14406, 15092, 15246, 17787, 19208, 19404, 20328, 21609, 22638, 23716, 24696, 26411, 28812, 30184, 30492, 33957, 35574, 38808, 41503, 43218, 45276, 47432, 52822, 53361, 57624, 60984, 67914, 71148, 79233, 83006, 86436, 90552, 105644, 106722, 124509, 135828, 142296, 158466, 166012, 172872, 211288, 213444, 237699, 249018, 271656, 290521, 316932, 332024, 373527, 426888, 475398, 498036, 581042, 633864, 747054, 871563, 950796, 996072, 1162084, 1494108, 1743126, 1901592, 2324168, 2614689, 2988216, 3486252, 5229378, 6972504, 10458756, 20917512]

約数ペア:

[(1, 20917512), (2, 10458756), (3, 6972504), (4, 5229378), (6, 3486252), (7, 2988216), (8, 2614689), (9, 2324168), (11, 1901592), (12, 1743126), (14, 1494108), (18, 1162084), (21, 996072), (22, 950796), (24, 871563), (28, 747054), (33, 633864), (36, 581042), (42, 498036), (44, 475398), (49, 426888), (56, 373527), (63, 332024), (66, 316932), (72, 290521), (77, 271656), (84, 249018), (88, 237699), (98, 213444), (99, 211288), (121, 172872), (126, 166012), (132, 158466), (147, 142296), (154, 135828), (168, 124509), (196, 106722), (198, 105644), (231, 90552), (242, 86436), (252, 83006), (264, 79233), (294, 71148), (308, 67914), (343, 60984), (363, 57624), (392, 53361), (396, 52822), (441, 47432), (462, 45276), (484, 43218), (504, 41503), (539, 38808), (588, 35574), (616, 33957), (686, 30492), (693, 30184), (726, 28812), (792, 26411), (847, 24696), (882, 23716), (924, 22638), (968, 21609), (1029, 20328), (1078, 19404), (1089, 19208), (1176, 17787), (1372, 15246), (1386, 15092), (1452, 14406), (1617, 12936), (1694, 12348), (1764, 11858), (1848, 11319), (2058, 10164), (2156, 9702), (2178, 9604), (2401, 8712), (2541, 8232), (2744, 7623), (2772, 7546), (2904, 7203), (3087, 6776), (3234, 6468), (3388, 6174), (3528, 5929), (3773, 5544), (4116, 5082), (4312, 4851), (4356, 4802)]