7280403

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 11289600

約数和(自身を除く): 4009197

約数列:

[1, 3, 13, 17, 39, 51, 79, 139, 221, 237, 417, 663, 1027, 1343, 1807, 2363, 3081, 4029, 5421, 7089, 10981, 17459, 30719, 32943, 52377, 92157, 142753, 186677, 428259, 560031, 2426801, 7280403]

約数ペア:

[(1, 7280403), (3, 2426801), (13, 560031), (17, 428259), (39, 186677), (51, 142753), (79, 92157), (139, 52377), (221, 32943), (237, 30719), (417, 17459), (663, 10981), (1027, 7089), (1343, 5421), (1807, 4029), (2363, 3081)]