21178586

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74051}}^1$

素因数の和:74077

約数の個数: 16

約数和(自身を含む): 37322208

約数和(自身を除く): 16143622

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74051, 148102, 814561, 962663, 1629122, 1925326, 10589293, 21178586]

約数ペア:

[(1, 21178586), (2, 10589293), (11, 1925326), (13, 1629122), (22, 962663), (26, 814561), (143, 148102), (286, 74051)]