21977296

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{647}}^1$

素因数の和:859

約数の個数: 40

約数和(自身を含む): 46764864

約数和(自身を除く): 24787568

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 193, 386, 647, 772, 1294, 1544, 2123, 2588, 3088, 4246, 5176, 7117, 8492, 10352, 14234, 16984, 28468, 33968, 56936, 113872, 124871, 249742, 499484, 998968, 1373581, 1997936, 2747162, 5494324, 10988648, 21977296]

約数ペア:

[(1, 21977296), (2, 10988648), (4, 5494324), (8, 2747162), (11, 1997936), (16, 1373581), (22, 998968), (44, 499484), (88, 249742), (176, 124871), (193, 113872), (386, 56936), (647, 33968), (772, 28468), (1294, 16984), (1544, 14234), (2123, 10352), (2588, 8492), (3088, 7117), (4246, 5176)]