20992996

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{383}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 37545984

約数和(自身を除く): 16552988

約数列:

[1, 2, 4, 71, 142, 193, 284, 383, 386, 766, 772, 1532, 13703, 27193, 27406, 54386, 54812, 73919, 108772, 147838, 295676, 5248249, 10496498, 20992996]

約数ペア:

[(1, 20992996), (2, 10496498), (4, 5248249), (71, 295676), (142, 147838), (193, 108772), (284, 73919), (383, 54812), (386, 54386), (766, 27406), (772, 27193), (1532, 13703)]