20416847

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 25380864

約数和(自身を除く): 4964017

約数列:

[1, 11, 17, 23, 47, 101, 187, 253, 391, 517, 799, 1081, 1111, 1717, 2323, 4301, 4747, 8789, 11891, 18377, 18887, 25553, 39491, 52217, 80699, 109181, 202147, 434401, 887689, 1200991, 1856077, 20416847]

約数ペア:

[(1, 20416847), (11, 1856077), (17, 1200991), (23, 887689), (47, 434401), (101, 202147), (187, 109181), (253, 80699), (391, 52217), (517, 39491), (799, 25553), (1081, 18887), (1111, 18377), (1717, 11891), (2323, 8789), (4301, 4747)]