21065198

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19541}}^1$

素因数の和:19568

約数の個数: 24

約数和(自身を含む): 40100184

約数和(自身を除く): 19034986

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19541, 39082, 136787, 214951, 273574, 429902, 957509, 1504657, 1915018, 3009314, 10532599, 21065198]

約数ペア:

[(1, 21065198), (2, 10532599), (7, 3009314), (11, 1915018), (14, 1504657), (22, 957509), (49, 429902), (77, 273574), (98, 214951), (154, 136787), (539, 39082), (1078, 19541)]