21006656

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:639

約数の個数: 56

約数和(自身を含む): 46414944

約数和(自身を除く): 25408288

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 64, 88, 106, 176, 212, 352, 424, 563, 583, 704, 848, 1126, 1166, 1696, 2252, 2332, 3392, 4504, 4664, 6193, 9008, 9328, 12386, 18016, 18656, 24772, 29839, 36032, 37312, 49544, 59678, 99088, 119356, 198176, 238712, 328229, 396352, 477424, 656458, 954848, 1312916, 1909696, 2625832, 5251664, 10503328, 21006656]

約数ペア:

[(1, 21006656), (2, 10503328), (4, 5251664), (8, 2625832), (11, 1909696), (16, 1312916), (22, 954848), (32, 656458), (44, 477424), (53, 396352), (64, 328229), (88, 238712), (106, 198176), (176, 119356), (212, 99088), (352, 59678), (424, 49544), (563, 37312), (583, 36032), (704, 29839), (848, 24772), (1126, 18656), (1166, 18016), (1696, 12386), (2252, 9328), (2332, 9008), (3392, 6193), (4504, 4664)]