20681836

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23827}}^1$

素因数の和:23869

約数の個数: 24

約数和(自身を含む): 42699776

約数和(自身を除く): 22017940

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 23827, 47654, 95308, 166789, 333578, 667156, 738637, 1477274, 2954548, 5170459, 10340918, 20681836]

約数ペア:

[(1, 20681836), (2, 10340918), (4, 5170459), (7, 2954548), (14, 1477274), (28, 738637), (31, 667156), (62, 333578), (124, 166789), (217, 95308), (434, 47654), (868, 23827)]