81681964

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{224401}}^1$

素因数の和:224425

約数の個数: 24

約数和(自身を含む): 175931168

約数和(自身を除く): 94249204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 224401, 448802, 897604, 1570807, 2917213, 3141614, 5834426, 6283228, 11668852, 20420491, 40840982, 81681964]

約数ペア:

[(1, 81681964), (2, 40840982), (4, 20420491), (7, 11668852), (13, 6283228), (14, 5834426), (26, 3141614), (28, 2917213), (52, 1570807), (91, 897604), (182, 448802), (364, 224401)]