389958738

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{2221}}^1\times {\mathrm{2251}}^1$

素因数の和:4490

約数の個数: 32

約数和(自身を含む): 840662592

約数和(自身を除く): 450703854

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 2221, 2251, 4442, 4502, 6663, 6753, 13326, 13506, 28873, 29263, 57746, 58526, 86619, 87789, 173238, 175578, 4999471, 9998942, 14998413, 29996826, 64993123, 129986246, 194979369, 389958738]

約数ペア:

[(1, 389958738), (2, 194979369), (3, 129986246), (6, 64993123), (13, 29996826), (26, 14998413), (39, 9998942), (78, 4999471), (2221, 175578), (2251, 173238), (4442, 87789), (4502, 86619), (6663, 58526), (6753, 57746), (13326, 29263), (13506, 28873)]