21388202

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2851}}^1$

素因数の和:2906

約数の個数: 24

約数和(自身を含む): 36414336

約数和(自身を除く): 15026134

約数列:

[1, 2, 11, 22, 31, 62, 121, 242, 341, 682, 2851, 3751, 5702, 7502, 31361, 62722, 88381, 176762, 344971, 689942, 972191, 1944382, 10694101, 21388202]

約数ペア:

[(1, 21388202), (2, 10694101), (11, 1944382), (22, 972191), (31, 689942), (62, 344971), (121, 176762), (242, 88381), (341, 62722), (682, 31361), (2851, 7502), (3751, 5702)]