51285311

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{193}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 71655840

約数和(自身を除く): 20370529

約数列:

[1, 7, 11, 17, 29, 49, 77, 119, 187, 193, 203, 319, 493, 539, 833, 1309, 1351, 1421, 2123, 2233, 3281, 3451, 5423, 5597, 9163, 9457, 14861, 15631, 22967, 24157, 36091, 37961, 39179, 61567, 95149, 104027, 160769, 252637, 265727, 274253, 430969, 666043, 1046639, 1768459, 3016783, 4662301, 7326473, 51285311]

約数ペア:

[(1, 51285311), (7, 7326473), (11, 4662301), (17, 3016783), (29, 1768459), (49, 1046639), (77, 666043), (119, 430969), (187, 274253), (193, 265727), (203, 252637), (319, 160769), (493, 104027), (539, 95149), (833, 61567), (1309, 39179), (1351, 37961), (1421, 36091), (2123, 24157), (2233, 22967), (3281, 15631), (3451, 14861), (5423, 9457), (5597, 9163)]