21090864

素因数分解:

$2^4\times 3^1\times {\mathrm{89}}^1\times {\mathrm{4937}}^1$

素因数の和:5037

約数の個数: 40

約数和(自身を含む): 55108080

約数和(自身を除く): 34017216

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 89, 178, 267, 356, 534, 712, 1068, 1424, 2136, 4272, 4937, 9874, 14811, 19748, 29622, 39496, 59244, 78992, 118488, 236976, 439393, 878786, 1318179, 1757572, 2636358, 3515144, 5272716, 7030288, 10545432, 21090864]

約数ペア:

[(1, 21090864), (2, 10545432), (3, 7030288), (4, 5272716), (6, 3515144), (8, 2636358), (12, 1757572), (16, 1318179), (24, 878786), (48, 439393), (89, 236976), (178, 118488), (267, 78992), (356, 59244), (534, 39496), (712, 29622), (1068, 19748), (1424, 14811), (2136, 9874), (4272, 4937)]