19657936

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{8839}}^1$

素因数の和:8986

約数の個数: 20

約数和(自身を含む): 38365600

約数和(自身を除く): 18707664

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 8839, 17678, 35356, 70712, 141424, 1228621, 2457242, 4914484, 9828968, 19657936]

約数ペア:

[(1, 19657936), (2, 9828968), (4, 4914484), (8, 2457242), (16, 1228621), (139, 141424), (278, 70712), (556, 35356), (1112, 17678), (2224, 8839)]