20857172

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{24029}}^1$

素因数の和:24071

約数の個数: 24

約数和(自身を含む): 43061760

約数和(自身を除く): 22204588

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 24029, 48058, 96116, 168203, 336406, 672812, 744899, 1489798, 2979596, 5214293, 10428586, 20857172]

約数ペア:

[(1, 20857172), (2, 10428586), (4, 5214293), (7, 2979596), (14, 1489798), (28, 744899), (31, 672812), (62, 336406), (124, 168203), (217, 96116), (434, 48058), (868, 24029)]