390894567

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{641863}}^1$

素因数の和:641902

約数の個数: 16

約数和(自身を含む): 616189440

約数和(自身を除く): 225294873

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 641863, 1925589, 4493041, 13479123, 18614027, 55842081, 130298189, 390894567]

約数ペア:

[(1, 390894567), (3, 130298189), (7, 55842081), (21, 18614027), (29, 13479123), (87, 4493041), (203, 1925589), (609, 641863)]