21880768

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2$

素因数の和:79

約数の個数: 126

約数和(自身を含む): 57079896

約数和(自身を除く): 35199128

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 17, 26, 28, 32, 34, 52, 56, 64, 68, 91, 104, 112, 119, 136, 169, 182, 208, 221, 224, 238, 272, 289, 338, 364, 416, 442, 448, 476, 544, 578, 676, 728, 832, 884, 952, 1088, 1156, 1183, 1352, 1456, 1547, 1768, 1904, 2023, 2312, 2366, 2704, 2873, 2912, 3094, 3536, 3757, 3808, 4046, 4624, 4732, 5408, 5746, 5824, 6188, 7072, 7514, 7616, 8092, 9248, 9464, 10816, 11492, 12376, 14144, 15028, 16184, 18496, 18928, 20111, 22984, 24752, 26299, 30056, 32368, 37856, 40222, 45968, 48841, 49504, 52598, 60112, 64736, 75712, 80444, 91936, 97682, 99008, 105196, 120224, 129472, 160888, 183872, 195364, 210392, 240448, 321776, 341887, 390728, 420784, 643552, 683774, 781456, 841568, 1287104, 1367548, 1562912, 1683136, 2735096, 3125824, 5470192, 10940384, 21880768]

約数ペア:

[(1, 21880768), (2, 10940384), (4, 5470192), (7, 3125824), (8, 2735096), (13, 1683136), (14, 1562912), (16, 1367548), (17, 1287104), (26, 841568), (28, 781456), (32, 683774), (34, 643552), (52, 420784), (56, 390728), (64, 341887), (68, 321776), (91, 240448), (104, 210392), (112, 195364), (119, 183872), (136, 160888), (169, 129472), (182, 120224), (208, 105196), (221, 99008), (224, 97682), (238, 91936), (272, 80444), (289, 75712), (338, 64736), (364, 60112), (416, 52598), (442, 49504), (448, 48841), (476, 45968), (544, 40222), (578, 37856), (676, 32368), (728, 30056), (832, 26299), (884, 24752), (952, 22984), (1088, 20111), (1156, 18928), (1183, 18496), (1352, 16184), (1456, 15028), (1547, 14144), (1768, 12376), (1904, 11492), (2023, 10816), (2312, 9464), (2366, 9248), (2704, 8092), (2873, 7616), (2912, 7514), (3094, 7072), (3536, 6188), (3757, 5824), (3808, 5746), (4046, 5408), (4624, 4732)]