213711988

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{557}}^1$

素因数の和:832

約数の個数: 48

約数和(自身を含む): 436472064

約数和(自身を除く): 222760076

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 193, 284, 386, 497, 557, 772, 994, 1114, 1351, 1988, 2228, 2702, 3899, 5404, 7798, 13703, 15596, 27406, 39547, 54812, 79094, 95921, 107501, 158188, 191842, 215002, 276829, 383684, 430004, 553658, 752507, 1107316, 1505014, 3010028, 7632571, 15265142, 30530284, 53427997, 106855994, 213711988]

約数ペア:

[(1, 213711988), (2, 106855994), (4, 53427997), (7, 30530284), (14, 15265142), (28, 7632571), (71, 3010028), (142, 1505014), (193, 1107316), (284, 752507), (386, 553658), (497, 430004), (557, 383684), (772, 276829), (994, 215002), (1114, 191842), (1351, 158188), (1988, 107501), (2228, 95921), (2702, 79094), (3899, 54812), (5404, 39547), (7798, 27406), (13703, 15596)]