7856667

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 14309568

約数和(自身を除く): 6452901

約数列:

[1, 3, 7, 9, 13, 21, 39, 53, 63, 91, 117, 159, 181, 273, 371, 477, 543, 689, 819, 1113, 1267, 1629, 2067, 2353, 3339, 3801, 4823, 6201, 7059, 9593, 11403, 14469, 16471, 21177, 28779, 43407, 49413, 67151, 86337, 124709, 148239, 201453, 374127, 604359, 872963, 1122381, 2618889, 7856667]

約数ペア:

[(1, 7856667), (3, 2618889), (7, 1122381), (9, 872963), (13, 604359), (21, 374127), (39, 201453), (53, 148239), (63, 124709), (91, 86337), (117, 67151), (159, 49413), (181, 43407), (273, 28779), (371, 21177), (477, 16471), (543, 14469), (689, 11403), (819, 9593), (1113, 7059), (1267, 6201), (1629, 4823), (2067, 3801), (2353, 3339)]