21107548

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68531}}^1$

素因数の和:68553

約数の個数: 24

約数和(自身を含む): 46053504

約数和(自身を除く): 24945956

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68531, 137062, 274124, 479717, 753841, 959434, 1507682, 1918868, 3015364, 5276887, 10553774, 21107548]

約数ペア:

[(1, 21107548), (2, 10553774), (4, 5276887), (7, 3015364), (11, 1918868), (14, 1507682), (22, 959434), (28, 753841), (44, 479717), (77, 274124), (154, 137062), (308, 68531)]