20989424

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77167}}^1$

素因数の和:77192

約数の個数: 20

約数和(自身を含む): 43059744

約数和(自身を除く): 22070320

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77167, 154334, 308668, 617336, 1234672, 1311839, 2623678, 5247356, 10494712, 20989424]

約数ペア:

[(1, 20989424), (2, 10494712), (4, 5247356), (8, 2623678), (16, 1311839), (17, 1234672), (34, 617336), (68, 308668), (136, 154334), (272, 77167)]