20648718

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{7699}}^1$

素因数の和:7856

約数の個数: 24

約数和(自身を含む): 45045000

約数和(自身を除く): 24396282

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 447, 894, 1341, 2682, 7699, 15398, 23097, 46194, 69291, 138582, 1147151, 2294302, 3441453, 6882906, 10324359, 20648718]

約数ペア:

[(1, 20648718), (2, 10324359), (3, 6882906), (6, 3441453), (9, 2294302), (18, 1147151), (149, 138582), (298, 69291), (447, 46194), (894, 23097), (1341, 15398), (2682, 7699)]