21124764

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{823}}^1$

素因数の和:887

約数の個数: 72

約数和(自身を含む): 57587712

約数和(自身を除く): 36462948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 31, 36, 46, 62, 69, 92, 93, 124, 138, 186, 207, 276, 279, 372, 414, 558, 713, 823, 828, 1116, 1426, 1646, 2139, 2469, 2852, 3292, 4278, 4938, 6417, 7407, 8556, 9876, 12834, 14814, 18929, 25513, 25668, 29628, 37858, 51026, 56787, 75716, 76539, 102052, 113574, 153078, 170361, 227148, 229617, 306156, 340722, 459234, 586799, 681444, 918468, 1173598, 1760397, 2347196, 3520794, 5281191, 7041588, 10562382, 21124764]

約数ペア:

[(1, 21124764), (2, 10562382), (3, 7041588), (4, 5281191), (6, 3520794), (9, 2347196), (12, 1760397), (18, 1173598), (23, 918468), (31, 681444), (36, 586799), (46, 459234), (62, 340722), (69, 306156), (92, 229617), (93, 227148), (124, 170361), (138, 153078), (186, 113574), (207, 102052), (276, 76539), (279, 75716), (372, 56787), (414, 51026), (558, 37858), (713, 29628), (823, 25668), (828, 25513), (1116, 18929), (1426, 14814), (1646, 12834), (2139, 9876), (2469, 8556), (2852, 7407), (3292, 6417), (4278, 4938)]