21383168

素因数分解:

$2^{11}\times {\mathrm{53}}^1\times {\mathrm{197}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 43783740

約数和(自身を除く): 22400572

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 197, 212, 256, 394, 424, 512, 788, 848, 1024, 1576, 1696, 2048, 3152, 3392, 6304, 6784, 10441, 12608, 13568, 20882, 25216, 27136, 41764, 50432, 54272, 83528, 100864, 108544, 167056, 201728, 334112, 403456, 668224, 1336448, 2672896, 5345792, 10691584, 21383168]

約数ペア:

[(1, 21383168), (2, 10691584), (4, 5345792), (8, 2672896), (16, 1336448), (32, 668224), (53, 403456), (64, 334112), (106, 201728), (128, 167056), (197, 108544), (212, 100864), (256, 83528), (394, 54272), (424, 50432), (512, 41764), (788, 27136), (848, 25216), (1024, 20882), (1576, 13568), (1696, 12608), (2048, 10441), (3152, 6784), (3392, 6304)]