20505814

素因数分解:

$2^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{2521}}^1$

素因数の和:2620

約数の個数: 24

約数和(自身を含む): 36226008

約数和(自身を除く): 15720194

約数列:

[1, 2, 7, 14, 49, 83, 98, 166, 581, 1162, 2521, 4067, 5042, 8134, 17647, 35294, 123529, 209243, 247058, 418486, 1464701, 2929402, 10252907, 20505814]

約数ペア:

[(1, 20505814), (2, 10252907), (7, 2929402), (14, 1464701), (49, 418486), (83, 247058), (98, 209243), (166, 123529), (581, 35294), (1162, 17647), (2521, 8134), (4067, 5042)]