20947894

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41399}}^1$

素因数の和:41435

約数の個数: 16

約数和(自身を含む): 35769600

約数和(自身を除く): 14821706

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41399, 82798, 455389, 910778, 952177, 1904354, 10473947, 20947894]

約数ペア:

[(1, 20947894), (2, 10473947), (11, 1904354), (22, 952177), (23, 910778), (46, 455389), (253, 82798), (506, 41399)]