20438393

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:344

約数の個数: 16

約数和(自身を含む): 22004736

約数和(自身を除く): 1566343

約数列:

[1, 31, 37, 103, 173, 1147, 3193, 3811, 5363, 6401, 17819, 118141, 198431, 552389, 659303, 20438393]

約数ペア:

[(1, 20438393), (31, 659303), (37, 552389), (103, 198431), (173, 118141), (1147, 17819), (3193, 6401), (3811, 5363)]