20545877

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:349

約数の個数: 24

約数和(自身を含む): 24933312

約数和(自身を除く): 4387435

約数列:

[1, 11, 17, 23, 187, 253, 281, 289, 391, 3091, 3179, 4301, 4777, 6463, 6647, 52547, 71093, 73117, 81209, 109871, 893299, 1208581, 1867807, 20545877]

約数ペア:

[(1, 20545877), (11, 1867807), (17, 1208581), (23, 893299), (187, 109871), (253, 81209), (281, 73117), (289, 71093), (391, 52547), (3091, 6647), (3179, 6463), (4301, 4777)]