2816541

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 5299840

約数和(自身を除く): 2483299

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 181, 247, 273, 399, 543, 741, 819, 1197, 1267, 1629, 1729, 2223, 2353, 3439, 3801, 5187, 7059, 10317, 11403, 15561, 16471, 21177, 24073, 30951, 44707, 49413, 72219, 134121, 148239, 216657, 312949, 402363, 938847, 2816541]

約数ペア:

[(1, 2816541), (3, 938847), (7, 402363), (9, 312949), (13, 216657), (19, 148239), (21, 134121), (39, 72219), (57, 49413), (63, 44707), (91, 30951), (117, 24073), (133, 21177), (171, 16471), (181, 15561), (247, 11403), (273, 10317), (399, 7059), (543, 5187), (741, 3801), (819, 3439), (1197, 2353), (1267, 2223), (1629, 1729)]