21122230

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{26737}}^1$

素因数の和:26823

約数の個数: 16

約数和(自身を含む): 38502720

約数和(自身を除く): 17380490

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 26737, 53474, 133685, 267370, 2112223, 4224446, 10561115, 21122230]

約数ペア:

[(1, 21122230), (2, 10561115), (5, 4224446), (10, 2112223), (79, 267370), (158, 133685), (395, 53474), (790, 26737)]