21242392

素因数分解:

$2^3\times {\mathrm{269}}^1\times {\mathrm{9871}}^1$

素因数の和:10146

約数の個数: 16

約数和(自身を含む): 39981600

約数和(自身を除く): 18739208

約数列:

[1, 2, 4, 8, 269, 538, 1076, 2152, 9871, 19742, 39484, 78968, 2655299, 5310598, 10621196, 21242392]

約数ペア:

[(1, 21242392), (2, 10621196), (4, 5310598), (8, 2655299), (269, 78968), (538, 39484), (1076, 19742), (2152, 9871)]