18865119

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3637}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 32596480

約数和(自身を除く): 13731361

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3637, 5187, 10911, 25459, 47281, 69103, 76377, 141843, 207309, 330967, 483721, 898339, 992901, 1451163, 2695017, 6288373, 18865119]

約数ペア:

[(1, 18865119), (3, 6288373), (7, 2695017), (13, 1451163), (19, 992901), (21, 898339), (39, 483721), (57, 330967), (91, 207309), (133, 141843), (247, 76377), (273, 69103), (399, 47281), (741, 25459), (1729, 10911), (3637, 5187)]