21950404

素因数分解:

$2^2\times 7^1\times {\mathrm{641}}^1\times {\mathrm{1223}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 44005248

約数和(自身を除く): 22054844

約数列:

[1, 2, 4, 7, 14, 28, 641, 1223, 1282, 2446, 2564, 4487, 4892, 8561, 8974, 17122, 17948, 34244, 783943, 1567886, 3135772, 5487601, 10975202, 21950404]

約数ペア:

[(1, 21950404), (2, 10975202), (4, 5487601), (7, 3135772), (14, 1567886), (28, 783943), (641, 34244), (1223, 17948), (1282, 17122), (2446, 8974), (2564, 8561), (4487, 4892)]