21073756

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{1091}}^1$

素因数の和:1545

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 19286564

約数列:

[1, 2, 4, 11, 22, 44, 439, 878, 1091, 1756, 2182, 4364, 4829, 9658, 12001, 19316, 24002, 48004, 478949, 957898, 1915796, 5268439, 10536878, 21073756]

約数ペア:

[(1, 21073756), (2, 10536878), (4, 5268439), (11, 1915796), (22, 957898), (44, 478949), (439, 48004), (878, 24002), (1091, 19316), (1756, 12001), (2182, 9658), (4364, 4829)]