21788208

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 66891552

約数和(自身を除く): 45103344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 103, 104, 113, 117, 144, 156, 206, 208, 226, 234, 309, 312, 339, 412, 452, 468, 618, 624, 678, 824, 904, 927, 936, 1017, 1236, 1339, 1356, 1469, 1648, 1808, 1854, 1872, 2034, 2472, 2678, 2712, 2938, 3708, 4017, 4068, 4407, 4944, 5356, 5424, 5876, 7416, 8034, 8136, 8814, 10712, 11639, 11752, 12051, 13221, 14832, 16068, 16272, 17628, 21424, 23278, 23504, 24102, 26442, 32136, 34917, 35256, 46556, 48204, 52884, 64272, 69834, 70512, 93112, 96408, 104751, 105768, 139668, 151307, 186224, 192816, 209502, 211536, 279336, 302614, 419004, 453921, 558672, 605228, 838008, 907842, 1210456, 1361763, 1676016, 1815684, 2420912, 2723526, 3631368, 5447052, 7262736, 10894104, 21788208]

約数ペア:

[(1, 21788208), (2, 10894104), (3, 7262736), (4, 5447052), (6, 3631368), (8, 2723526), (9, 2420912), (12, 1815684), (13, 1676016), (16, 1361763), (18, 1210456), (24, 907842), (26, 838008), (36, 605228), (39, 558672), (48, 453921), (52, 419004), (72, 302614), (78, 279336), (103, 211536), (104, 209502), (113, 192816), (117, 186224), (144, 151307), (156, 139668), (206, 105768), (208, 104751), (226, 96408), (234, 93112), (309, 70512), (312, 69834), (339, 64272), (412, 52884), (452, 48204), (468, 46556), (618, 35256), (624, 34917), (678, 32136), (824, 26442), (904, 24102), (927, 23504), (936, 23278), (1017, 21424), (1236, 17628), (1339, 16272), (1356, 16068), (1469, 14832), (1648, 13221), (1808, 12051), (1854, 11752), (1872, 11639), (2034, 10712), (2472, 8814), (2678, 8136), (2712, 8034), (2938, 7416), (3708, 5876), (4017, 5424), (4068, 5356), (4407, 4944)]