21000612448

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{47251}}^1$

素因数の和:47340

約数の個数: 96

約数和(自身を含む): 47153715840

約数和(自身を除く): 26153103392

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 43, 68, 76, 86, 136, 152, 172, 272, 304, 323, 344, 544, 608, 646, 688, 731, 817, 1292, 1376, 1462, 1634, 2584, 2924, 3268, 5168, 5848, 6536, 10336, 11696, 13072, 13889, 23392, 26144, 27778, 47251, 55556, 94502, 111112, 189004, 222224, 378008, 444448, 756016, 803267, 897769, 1512032, 1606534, 1795538, 2031793, 3213068, 3591076, 4063586, 6426136, 7182152, 8127172, 12852272, 14364304, 15262073, 16254344, 25704544, 28728608, 30524146, 32508688, 34540481, 38604067, 61048292, 65017376, 69080962, 77208134, 122096584, 138161924, 154416268, 244193168, 276323848, 308832536, 488386336, 552647696, 617665072, 656269139, 1105295392, 1235330144, 1312538278, 2625076556, 5250153112, 10500306224, 21000612448]

約数ペア:

[(1, 21000612448), (2, 10500306224), (4, 5250153112), (8, 2625076556), (16, 1312538278), (17, 1235330144), (19, 1105295392), (32, 656269139), (34, 617665072), (38, 552647696), (43, 488386336), (68, 308832536), (76, 276323848), (86, 244193168), (136, 154416268), (152, 138161924), (172, 122096584), (272, 77208134), (304, 69080962), (323, 65017376), (344, 61048292), (544, 38604067), (608, 34540481), (646, 32508688), (688, 30524146), (731, 28728608), (817, 25704544), (1292, 16254344), (1376, 15262073), (1462, 14364304), (1634, 12852272), (2584, 8127172), (2924, 7182152), (3268, 6426136), (5168, 4063586), (5848, 3591076), (6536, 3213068), (10336, 2031793), (11696, 1795538), (13072, 1606534), (13889, 1512032), (23392, 897769), (26144, 803267), (27778, 756016), (47251, 444448), (55556, 378008), (94502, 222224), (111112, 189004)]