21518464

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:102

約数の個数: 128

約数和(自身を含む): 52876800

約数和(自身を除く): 31358336

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 29, 31, 32, 34, 44, 58, 62, 64, 68, 88, 116, 124, 128, 136, 176, 187, 232, 248, 272, 319, 341, 352, 374, 464, 493, 496, 527, 544, 638, 682, 704, 748, 899, 928, 986, 992, 1054, 1088, 1276, 1364, 1408, 1496, 1798, 1856, 1972, 1984, 2108, 2176, 2552, 2728, 2992, 3596, 3712, 3944, 3968, 4216, 5104, 5423, 5456, 5797, 5984, 7192, 7888, 8432, 9889, 10208, 10846, 10912, 11594, 11968, 14384, 15283, 15776, 16864, 19778, 20416, 21692, 21824, 23188, 23936, 28768, 30566, 31552, 33728, 39556, 40832, 43384, 43648, 46376, 57536, 61132, 63104, 67456, 79112, 86768, 92752, 115072, 122264, 158224, 168113, 173536, 185504, 244528, 316448, 336226, 347072, 371008, 489056, 632896, 672452, 694144, 742016, 978112, 1265792, 1344904, 1956224, 2689808, 5379616, 10759232, 21518464]

約数ペア:

[(1, 21518464), (2, 10759232), (4, 5379616), (8, 2689808), (11, 1956224), (16, 1344904), (17, 1265792), (22, 978112), (29, 742016), (31, 694144), (32, 672452), (34, 632896), (44, 489056), (58, 371008), (62, 347072), (64, 336226), (68, 316448), (88, 244528), (116, 185504), (124, 173536), (128, 168113), (136, 158224), (176, 122264), (187, 115072), (232, 92752), (248, 86768), (272, 79112), (319, 67456), (341, 63104), (352, 61132), (374, 57536), (464, 46376), (493, 43648), (496, 43384), (527, 40832), (544, 39556), (638, 33728), (682, 31552), (704, 30566), (748, 28768), (899, 23936), (928, 23188), (986, 21824), (992, 21692), (1054, 20416), (1088, 19778), (1276, 16864), (1364, 15776), (1408, 15283), (1496, 14384), (1798, 11968), (1856, 11594), (1972, 10912), (1984, 10846), (2108, 10208), (2176, 9889), (2552, 8432), (2728, 7888), (2992, 7192), (3596, 5984), (3712, 5797), (3944, 5456), (3968, 5423), (4216, 5104)]