18755396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1$

素因数の和:512

約数の個数: 48

約数和(自身を含む): 38320128

約数和(自身を除く): 19564732

約数列:

[1, 2, 4, 11, 22, 23, 43, 44, 46, 86, 92, 172, 253, 431, 473, 506, 862, 946, 989, 1012, 1724, 1892, 1978, 3956, 4741, 9482, 9913, 10879, 18533, 18964, 19826, 21758, 37066, 39652, 43516, 74132, 109043, 203863, 218086, 407726, 426259, 436172, 815452, 852518, 1705036, 4688849, 9377698, 18755396]

約数ペア:

[(1, 18755396), (2, 9377698), (4, 4688849), (11, 1705036), (22, 852518), (23, 815452), (43, 436172), (44, 426259), (46, 407726), (86, 218086), (92, 203863), (172, 109043), (253, 74132), (431, 43516), (473, 39652), (506, 37066), (862, 21758), (946, 19826), (989, 18964), (1012, 18533), (1724, 10879), (1892, 9913), (1978, 9482), (3956, 4741)]