398032947

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{377999}}^1$

素因数の和:378024

約数の個数: 20

約数和(自身を含む): 640332000

約数和(自身を除く): 242299053

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 377999, 1133997, 3401991, 4913987, 10205973, 14741961, 30617919, 44225883, 132677649, 398032947]

約数ペア:

[(1, 398032947), (3, 132677649), (9, 44225883), (13, 30617919), (27, 14741961), (39, 10205973), (81, 4913987), (117, 3401991), (351, 1133997), (1053, 377999)]