20437172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{19727}}^1$

素因数の和:19775

約数の個数: 24

約数和(自身を含む): 41981184

約数和(自身を除く): 21544012

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 19727, 39454, 78908, 138089, 276178, 552356, 729899, 1459798, 2919596, 5109293, 10218586, 20437172]

約数ペア:

[(1, 20437172), (2, 10218586), (4, 5109293), (7, 2919596), (14, 1459798), (28, 729899), (37, 552356), (74, 276178), (148, 138089), (259, 78908), (518, 39454), (1036, 19727)]