20382404

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5237}}^1$

素因数の和:5387

約数の個数: 24

約数和(自身を含む): 41065920

約数和(自身を除く): 20683516

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5237, 10474, 20948, 36659, 73318, 146636, 727943, 1455886, 2911772, 5095601, 10191202, 20382404]

約数ペア:

[(1, 20382404), (2, 10191202), (4, 5095601), (7, 2911772), (14, 1455886), (28, 727943), (139, 146636), (278, 73318), (556, 36659), (973, 20948), (1946, 10474), (3892, 5237)]