20974786

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{1559}}^1$

素因数の和:1630

約数の個数: 24

約数和(自身を含む): 37177920

約数和(自身を除く): 16203134

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 961, 1559, 1922, 3118, 6727, 10913, 13454, 21826, 48329, 96658, 338303, 676606, 1498199, 2996398, 10487393, 20974786]

約数ペア:

[(1, 20974786), (2, 10487393), (7, 2996398), (14, 1498199), (31, 676606), (62, 338303), (217, 96658), (434, 48329), (961, 21826), (1559, 13454), (1922, 10913), (3118, 6727)]