20989636

素因数分解:

$2^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{1151}}^1$

素因数の和:1299

約数の個数: 24

約数和(自身を含む): 37933056

約数和(自身を除く): 16943420

約数列:

[1, 2, 4, 47, 94, 97, 188, 194, 388, 1151, 2302, 4559, 4604, 9118, 18236, 54097, 108194, 111647, 216388, 223294, 446588, 5247409, 10494818, 20989636]

約数ペア:

[(1, 20989636), (2, 10494818), (4, 5247409), (47, 446588), (94, 223294), (97, 216388), (188, 111647), (194, 108194), (388, 54097), (1151, 18236), (2302, 9118), (4559, 4604)]