21261528

素因数分解:

$2^3\times 3^5\times {\mathrm{10937}}^1$

素因数の和:10958

約数の個数: 48

約数和(自身を含む): 59721480

約数和(自身を除く): 38459952

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10937, 21874, 32811, 43748, 65622, 87496, 98433, 131244, 196866, 262488, 295299, 393732, 590598, 787464, 885897, 1181196, 1771794, 2362392, 2657691, 3543588, 5315382, 7087176, 10630764, 21261528]

約数ペア:

[(1, 21261528), (2, 10630764), (3, 7087176), (4, 5315382), (6, 3543588), (8, 2657691), (9, 2362392), (12, 1771794), (18, 1181196), (24, 885897), (27, 787464), (36, 590598), (54, 393732), (72, 295299), (81, 262488), (108, 196866), (162, 131244), (216, 98433), (243, 87496), (324, 65622), (486, 43748), (648, 32811), (972, 21874), (1944, 10937)]