20972492

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{9949}}^1$

素因数の和:10001

約数の個数: 24

約数和(自身を含む): 40118400

約数和(自身を除く): 19145908

約数列:

[1, 2, 4, 17, 31, 34, 62, 68, 124, 527, 1054, 2108, 9949, 19898, 39796, 169133, 308419, 338266, 616838, 676532, 1233676, 5243123, 10486246, 20972492]

約数ペア:

[(1, 20972492), (2, 10486246), (4, 5243123), (17, 1233676), (31, 676532), (34, 616838), (62, 338266), (68, 308419), (124, 169133), (527, 39796), (1054, 19898), (2108, 9949)]