139687639

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{467}}^1$

素因数の和:679

約数の個数: 32

約数和(自身を含む): 182407680

約数和(自身を除く): 42720041

約数列:

[1, 7, 13, 19, 91, 133, 173, 247, 467, 1211, 1729, 2249, 3269, 3287, 6071, 8873, 15743, 23009, 42497, 42731, 62111, 80791, 115349, 299117, 565537, 807443, 1050283, 1535029, 7351981, 10745203, 19955377, 139687639]

約数ペア:

[(1, 139687639), (7, 19955377), (13, 10745203), (19, 7351981), (91, 1535029), (133, 1050283), (173, 807443), (247, 565537), (467, 299117), (1211, 115349), (1729, 80791), (2249, 62111), (3269, 42731), (3287, 42497), (6071, 23009), (8873, 15743)]