21150072

素因数分解:

$2^3\times 3^4\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 59938560

約数和(自身を除く): 38788488

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 127, 162, 216, 254, 257, 324, 381, 508, 514, 648, 762, 771, 1016, 1028, 1143, 1524, 1542, 2056, 2286, 2313, 3048, 3084, 3429, 4572, 4626, 6168, 6858, 6939, 9144, 9252, 10287, 13716, 13878, 18504, 20574, 20817, 27432, 27756, 32639, 41148, 41634, 55512, 65278, 82296, 83268, 97917, 130556, 166536, 195834, 261112, 293751, 391668, 587502, 783336, 881253, 1175004, 1762506, 2350008, 2643759, 3525012, 5287518, 7050024, 10575036, 21150072]

約数ペア:

[(1, 21150072), (2, 10575036), (3, 7050024), (4, 5287518), (6, 3525012), (8, 2643759), (9, 2350008), (12, 1762506), (18, 1175004), (24, 881253), (27, 783336), (36, 587502), (54, 391668), (72, 293751), (81, 261112), (108, 195834), (127, 166536), (162, 130556), (216, 97917), (254, 83268), (257, 82296), (324, 65278), (381, 55512), (508, 41634), (514, 41148), (648, 32639), (762, 27756), (771, 27432), (1016, 20817), (1028, 20574), (1143, 18504), (1524, 13878), (1542, 13716), (2056, 10287), (2286, 9252), (2313, 9144), (3048, 6939), (3084, 6858), (3429, 6168), (4572, 4626)]