20525706

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1153}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 47526336

約数和(自身を除く): 27000630

約数列:

[1, 2, 3, 6, 9, 18, 23, 43, 46, 69, 86, 129, 138, 207, 258, 387, 414, 774, 989, 1153, 1978, 2306, 2967, 3459, 5934, 6918, 8901, 10377, 17802, 20754, 26519, 49579, 53038, 79557, 99158, 148737, 159114, 238671, 297474, 446211, 477342, 892422, 1140317, 2280634, 3420951, 6841902, 10262853, 20525706]

約数ペア:

[(1, 20525706), (2, 10262853), (3, 6841902), (6, 3420951), (9, 2280634), (18, 1140317), (23, 892422), (43, 477342), (46, 446211), (69, 297474), (86, 238671), (129, 159114), (138, 148737), (207, 99158), (258, 79557), (387, 53038), (414, 49579), (774, 26519), (989, 20754), (1153, 17802), (1978, 10377), (2306, 8901), (2967, 6918), (3459, 5934)]