21505022

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19949}}^1$

素因数の和:19976

約数の個数: 24

約数和(自身を含む): 40937400

約数和(自身を除く): 19432378

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19949, 39898, 139643, 219439, 279286, 438878, 977501, 1536073, 1955002, 3072146, 10752511, 21505022]

約数ペア:

[(1, 21505022), (2, 10752511), (7, 3072146), (11, 1955002), (14, 1536073), (22, 977501), (49, 438878), (77, 279286), (98, 219439), (154, 139643), (539, 39898), (1078, 19949)]