389778879

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{91433}}^1$

素因数の和:91479

約数の個数: 24

約数和(自身を含む): 625408560

約数和(自身を除く): 235629681

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 91433, 274299, 640031, 1920093, 2651557, 4480217, 7954671, 13440651, 18560899, 55682697, 129926293, 389778879]

約数ペア:

[(1, 389778879), (3, 129926293), (7, 55682697), (21, 18560899), (29, 13440651), (49, 7954671), (87, 4480217), (147, 2651557), (203, 1920093), (609, 640031), (1421, 274299), (4263, 91433)]