19716068864

素因数分解:

$2^9\times {\mathrm{38507947}}^1$

素因数の和:38507965

約数の個数: 20

約数和(自身を含む): 39393630804

約数和(自身を除く): 19677561940

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 38507947, 77015894, 154031788, 308063576, 616127152, 1232254304, 2464508608, 4929017216, 9858034432, 19716068864]

約数ペア:

[(1, 19716068864), (2, 9858034432), (4, 4929017216), (8, 2464508608), (16, 1232254304), (32, 616127152), (64, 308063576), (128, 154031788), (256, 77015894), (512, 38507947)]