20971024

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 42140160

約数和(自身を除く): 21169136

約数列:

[1, 2, 4, 8, 16, 47, 79, 94, 158, 188, 316, 353, 376, 632, 706, 752, 1264, 1412, 2824, 3713, 5648, 7426, 14852, 16591, 27887, 29704, 33182, 55774, 59408, 66364, 111548, 132728, 223096, 265456, 446192, 1310689, 2621378, 5242756, 10485512, 20971024]

約数ペア:

[(1, 20971024), (2, 10485512), (4, 5242756), (8, 2621378), (16, 1310689), (47, 446192), (79, 265456), (94, 223096), (158, 132728), (188, 111548), (316, 66364), (353, 59408), (376, 55774), (632, 33182), (706, 29704), (752, 27887), (1264, 16591), (1412, 14852), (2824, 7426), (3713, 5648)]