20175991

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{4691}}^1$

素因数の和:4742

約数の個数: 16

約数和(自身を含む): 24323328

約数和(自身を除く): 4147337

約数列:

[1, 11, 17, 23, 187, 253, 391, 4301, 4691, 51601, 79747, 107893, 877217, 1186823, 1834181, 20175991]

約数ペア:

[(1, 20175991), (11, 1834181), (17, 1186823), (23, 877217), (187, 107893), (253, 79747), (391, 51601), (4301, 4691)]