7265391

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 11827200

約数和(自身を除く): 4561809

約数列:

[1, 3, 7, 19, 21, 57, 131, 133, 139, 393, 399, 417, 917, 973, 2489, 2641, 2751, 2919, 7467, 7923, 17423, 18209, 18487, 52269, 54627, 55461, 127463, 345971, 382389, 1037913, 2421797, 7265391]

約数ペア:

[(1, 7265391), (3, 2421797), (7, 1037913), (19, 382389), (21, 345971), (57, 127463), (131, 55461), (133, 54627), (139, 52269), (393, 18487), (399, 18209), (417, 17423), (917, 7923), (973, 7467), (2489, 2919), (2641, 2751)]