21005003

素因数分解:

${\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{673}}^1$

素因数の和:778

約数の個数: 12

約数和(自身を含む): 22363320

約数和(自身を除く): 1358317

約数列:

[1, 23, 59, 529, 673, 1357, 15479, 31211, 39707, 356017, 913261, 21005003]

約数ペア:

[(1, 21005003), (23, 913261), (59, 356017), (529, 39707), (673, 31211), (1357, 15479)]