390971721

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{433}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 657735680

約数和(自身を除く): 266763959

約数列:

[1, 3, 7, 19, 21, 31, 57, 73, 93, 133, 217, 219, 399, 433, 511, 589, 651, 1299, 1387, 1533, 1767, 2263, 3031, 4123, 4161, 6789, 8227, 9093, 9709, 12369, 13423, 15841, 24681, 29127, 31609, 40269, 42997, 47523, 57589, 93961, 94827, 128991, 172767, 221263, 255037, 281883, 300979, 600571, 663789, 765111, 902937, 979879, 1785259, 1801713, 2939637, 4203997, 5355777, 6859153, 12611991, 18617701, 20577459, 55853103, 130323907, 390971721]

約数ペア:

[(1, 390971721), (3, 130323907), (7, 55853103), (19, 20577459), (21, 18617701), (31, 12611991), (57, 6859153), (73, 5355777), (93, 4203997), (133, 2939637), (217, 1801713), (219, 1785259), (399, 979879), (433, 902937), (511, 765111), (589, 663789), (651, 600571), (1299, 300979), (1387, 281883), (1533, 255037), (1767, 221263), (2263, 172767), (3031, 128991), (4123, 94827), (4161, 93961), (6789, 57589), (8227, 47523), (9093, 42997), (9709, 40269), (12369, 31609), (13423, 29127), (15841, 24681)]