19510784

素因数分解:

$2^9\times {\mathrm{53}}^1\times {\mathrm{719}}^1$

素因数の和:790

約数の個数: 40

約数和(自身を含む): 39774240

約数和(自身を除く): 20263456

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 106, 128, 212, 256, 424, 512, 719, 848, 1438, 1696, 2876, 3392, 5752, 6784, 11504, 13568, 23008, 27136, 38107, 46016, 76214, 92032, 152428, 184064, 304856, 368128, 609712, 1219424, 2438848, 4877696, 9755392, 19510784]

約数ペア:

[(1, 19510784), (2, 9755392), (4, 4877696), (8, 2438848), (16, 1219424), (32, 609712), (53, 368128), (64, 304856), (106, 184064), (128, 152428), (212, 92032), (256, 76214), (424, 46016), (512, 38107), (719, 27136), (848, 23008), (1438, 13568), (1696, 11504), (2876, 6784), (3392, 5752)]