28685041

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2801}}^1$

素因数の和:2845

約数の個数: 24

約数和(自身を含む): 38331360

約数和(自身を除く): 9646319

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 2801, 10241, 19607, 30811, 53219, 137249, 215677, 372533, 585409, 1509739, 2607731, 4097863, 28685041]

約数ペア:

[(1, 28685041), (7, 4097863), (11, 2607731), (19, 1509739), (49, 585409), (77, 372533), (133, 215677), (209, 137249), (539, 53219), (931, 30811), (1463, 19607), (2801, 10241)]