20599748

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1044

約数の個数: 36

約数和(自身を含む): 40336128

約数和(自身を除く): 19736380

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 338, 403, 676, 806, 983, 1612, 1966, 3932, 5239, 10478, 12779, 20956, 25558, 30473, 51116, 60946, 121892, 166127, 332254, 396149, 664508, 792298, 1584596, 5149937, 10299874, 20599748]

約数ペア:

[(1, 20599748), (2, 10299874), (4, 5149937), (13, 1584596), (26, 792298), (31, 664508), (52, 396149), (62, 332254), (124, 166127), (169, 121892), (338, 60946), (403, 51116), (676, 30473), (806, 25558), (983, 20956), (1612, 12779), (1966, 10478), (3932, 5239)]