21887008

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4783}}^1$

素因数の和:4817

約数の個数: 48

約数和(自身を含む): 50633856

約数和(自身を除く): 28746848

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4576, 4783, 9566, 19132, 38264, 52613, 62179, 76528, 105226, 124358, 153056, 210452, 248716, 420904, 497432, 683969, 841808, 994864, 1367938, 1683616, 1989728, 2735876, 5471752, 10943504, 21887008]

約数ペア:

[(1, 21887008), (2, 10943504), (4, 5471752), (8, 2735876), (11, 1989728), (13, 1683616), (16, 1367938), (22, 994864), (26, 841808), (32, 683969), (44, 497432), (52, 420904), (88, 248716), (104, 210452), (143, 153056), (176, 124358), (208, 105226), (286, 76528), (352, 62179), (416, 52613), (572, 38264), (1144, 19132), (2288, 9566), (4576, 4783)]