21223388

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{349}}^1\times {\mathrm{661}}^1$

素因数の和:1037

約数の個数: 24

約数和(自身を含む): 38925600

約数和(自身を除く): 17702212

約数列:

[1, 2, 4, 23, 46, 92, 349, 661, 698, 1322, 1396, 2644, 8027, 15203, 16054, 30406, 32108, 60812, 230689, 461378, 922756, 5305847, 10611694, 21223388]

約数ペア:

[(1, 21223388), (2, 10611694), (4, 5305847), (23, 922756), (46, 461378), (92, 230689), (349, 60812), (661, 32108), (698, 30406), (1322, 16054), (1396, 15203), (2644, 8027)]