20998149

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{1867}}^1$

素因数の和:2056

約数の個数: 16

約数和(自身を含む): 29409792

約数和(自身を除く): 8411643

約数列:

[1, 3, 23, 69, 163, 489, 1867, 3749, 5601, 11247, 42941, 128823, 304321, 912963, 6999383, 20998149]

約数ペア:

[(1, 20998149), (3, 6999383), (23, 912963), (69, 304321), (163, 128823), (489, 42941), (1867, 11247), (3749, 5601)]