21388246

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{2377}}^1$

素因数の和:2799

約数の個数: 16

約数和(自身を含む): 35099280

約数和(自身を除く): 13711034

約数列:

[1, 2, 11, 22, 409, 818, 2377, 4499, 4754, 8998, 26147, 52294, 972193, 1944386, 10694123, 21388246]

約数ペア:

[(1, 21388246), (2, 10694123), (11, 1944386), (22, 972193), (409, 52294), (818, 26147), (2377, 8998), (4499, 4754)]