388935687

素因数分解:

$3^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{6469}}^1$

素因数の和:6895

約数の個数: 24

約数和(自身を含む): 604815600

約数和(自身を除く): 215879913

約数列:

[1, 3, 7, 21, 49, 147, 409, 1227, 2863, 6469, 8589, 19407, 20041, 45283, 60123, 135849, 316981, 950943, 2645821, 7937463, 18520747, 55562241, 129645229, 388935687]

約数ペア:

[(1, 388935687), (3, 129645229), (7, 55562241), (21, 18520747), (49, 7937463), (147, 2645821), (409, 950943), (1227, 316981), (2863, 135849), (6469, 60123), (8589, 45283), (19407, 20041)]