20267884

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55681}}^1$

素因数の和:55705

約数の個数: 24

約数和(自身を含む): 43654688

約数和(自身を除く): 23386804

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 55681, 111362, 222724, 389767, 723853, 779534, 1447706, 1559068, 2895412, 5066971, 10133942, 20267884]

約数ペア:

[(1, 20267884), (2, 10133942), (4, 5066971), (7, 2895412), (13, 1559068), (14, 1447706), (26, 779534), (28, 723853), (52, 389767), (91, 222724), (182, 111362), (364, 55681)]