207976489

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 262184960

約数和(自身を除く): 54208471

約数列:

[1, 7, 19, 31, 73, 133, 217, 511, 589, 691, 1387, 2263, 4123, 4837, 9709, 13129, 15841, 21421, 42997, 50443, 91903, 149947, 300979, 353101, 406999, 958417, 1563733, 2848993, 6708919, 10946131, 29710927, 207976489]

約数ペア:

[(1, 207976489), (7, 29710927), (19, 10946131), (31, 6708919), (73, 2848993), (133, 1563733), (217, 958417), (511, 406999), (589, 353101), (691, 300979), (1387, 149947), (2263, 91903), (4123, 50443), (4837, 42997), (9709, 21421), (13129, 15841)]