21905254

素因数分解:

$2^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{2089}}^1$

素因数の和:2212

約数の個数: 24

約数和(自身を含む): 38598120

約数和(自身を除く): 16692866

約数列:

[1, 2, 7, 14, 49, 98, 107, 214, 749, 1498, 2089, 4178, 5243, 10486, 14623, 29246, 102361, 204722, 223523, 447046, 1564661, 3129322, 10952627, 21905254]

約数ペア:

[(1, 21905254), (2, 10952627), (7, 3129322), (14, 1564661), (49, 447046), (98, 223523), (107, 204722), (214, 102361), (749, 29246), (1498, 14623), (2089, 10486), (4178, 5243)]