20999732

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{1427}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 39744096

約数和(自身を除く): 18744364

約数列:

[1, 2, 4, 13, 26, 52, 283, 566, 1132, 1427, 2854, 3679, 5708, 7358, 14716, 18551, 37102, 74204, 403841, 807682, 1615364, 5249933, 10499866, 20999732]

約数ペア:

[(1, 20999732), (2, 10499866), (4, 5249933), (13, 1615364), (26, 807682), (52, 403841), (283, 74204), (566, 37102), (1132, 18551), (1427, 14716), (2854, 7358), (3679, 5708)]