20671618

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40853}}^1$

素因数の和:40889

約数の個数: 16

約数和(自身を含む): 35297856

約数和(自身を除く): 14626238

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40853, 81706, 449383, 898766, 939619, 1879238, 10335809, 20671618]

約数ペア:

[(1, 20671618), (2, 10335809), (11, 1879238), (22, 939619), (23, 898766), (46, 449383), (253, 81706), (506, 40853)]