279287281

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:565

約数の個数: 32

約数和(自身を含む): 352235520

約数和(自身を除く): 72948239

約数列:

[1, 7, 13, 83, 91, 103, 359, 581, 721, 1079, 1339, 2513, 4667, 7553, 8549, 9373, 29797, 32669, 36977, 59843, 111137, 208579, 258839, 387361, 480701, 777959, 2711527, 3069091, 3364907, 21483637, 39898183, 279287281]

約数ペア:

[(1, 279287281), (7, 39898183), (13, 21483637), (83, 3364907), (91, 3069091), (103, 2711527), (359, 777959), (581, 480701), (721, 387361), (1079, 258839), (1339, 208579), (2513, 111137), (4667, 59843), (7553, 36977), (8549, 32669), (9373, 29797)]