20185581647

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{408971}}^1$

素因数の和:409630

約数の個数: 16

約数和(自身を含む): 25205762304

約数和(自身を除く): 5020180657

約数列:

[1, 7, 11, 77, 641, 4487, 7051, 49357, 408971, 2862797, 4498681, 31490767, 262150411, 1835052877, 2883654521, 20185581647]

約数ペア:

[(1, 20185581647), (7, 2883654521), (11, 1835052877), (77, 262150411), (641, 31490767), (4487, 4498681), (7051, 2862797), (49357, 408971)]