81580863

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 136421376

約数和(自身を除く): 54840513

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 169, 181, 273, 381, 507, 543, 889, 1183, 1267, 1651, 2353, 2667, 3549, 3801, 4953, 7059, 11557, 16471, 21463, 22987, 30589, 34671, 49413, 64389, 68961, 91767, 150241, 160909, 214123, 298831, 450723, 482727, 642369, 896493, 2091817, 3884803, 6275451, 11654409, 27193621, 81580863]

約数ペア:

[(1, 81580863), (3, 27193621), (7, 11654409), (13, 6275451), (21, 3884803), (39, 2091817), (91, 896493), (127, 642369), (169, 482727), (181, 450723), (273, 298831), (381, 214123), (507, 160909), (543, 150241), (889, 91767), (1183, 68961), (1267, 64389), (1651, 49413), (2353, 34671), (2667, 30589), (3549, 22987), (3801, 21463), (4953, 16471), (7059, 11557)]