21979818

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{174443}}^1$

素因数の和:174458

約数の個数: 24

約数和(自身を含む): 54426528

約数和(自身を除く): 32446710

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 174443, 348886, 523329, 1046658, 1221101, 1569987, 2442202, 3139974, 3663303, 7326606, 10989909, 21979818]

約数ペア:

[(1, 21979818), (2, 10989909), (3, 7326606), (6, 3663303), (7, 3139974), (9, 2442202), (14, 1569987), (18, 1221101), (21, 1046658), (42, 523329), (63, 348886), (126, 174443)]