20668492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2081}}^1$

素因数の和:2289

約数の個数: 24

約数和(自身を含む): 39174912

約数和(自身を除く): 18506420

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2081, 2483, 4162, 4966, 8324, 9932, 27053, 54106, 108212, 397471, 794942, 1589884, 5167123, 10334246, 20668492]

約数ペア:

[(1, 20668492), (2, 10334246), (4, 5167123), (13, 1589884), (26, 794942), (52, 397471), (191, 108212), (382, 54106), (764, 27053), (2081, 9932), (2483, 8324), (4162, 4966)]