21978528

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1601}}^1$

素因数の和:1638

約数の個数: 96

約数和(自身を含む): 67822272

約数和(自身を除く): 45843744

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 32, 33, 39, 44, 48, 52, 66, 78, 88, 96, 104, 132, 143, 156, 176, 208, 264, 286, 312, 352, 416, 429, 528, 572, 624, 858, 1056, 1144, 1248, 1601, 1716, 2288, 3202, 3432, 4576, 4803, 6404, 6864, 9606, 12808, 13728, 17611, 19212, 20813, 25616, 35222, 38424, 41626, 51232, 52833, 62439, 70444, 76848, 83252, 105666, 124878, 140888, 153696, 166504, 211332, 228943, 249756, 281776, 333008, 422664, 457886, 499512, 563552, 666016, 686829, 845328, 915772, 999024, 1373658, 1690656, 1831544, 1998048, 2747316, 3663088, 5494632, 7326176, 10989264, 21978528]

約数ペア:

[(1, 21978528), (2, 10989264), (3, 7326176), (4, 5494632), (6, 3663088), (8, 2747316), (11, 1998048), (12, 1831544), (13, 1690656), (16, 1373658), (22, 999024), (24, 915772), (26, 845328), (32, 686829), (33, 666016), (39, 563552), (44, 499512), (48, 457886), (52, 422664), (66, 333008), (78, 281776), (88, 249756), (96, 228943), (104, 211332), (132, 166504), (143, 153696), (156, 140888), (176, 124878), (208, 105666), (264, 83252), (286, 76848), (312, 70444), (352, 62439), (416, 52833), (429, 51232), (528, 41626), (572, 38424), (624, 35222), (858, 25616), (1056, 20813), (1144, 19212), (1248, 17611), (1601, 13728), (1716, 12808), (2288, 9606), (3202, 6864), (3432, 6404), (4576, 4803)]