21421055

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 26417664

約数和(自身を除く): 4996609

約数列:

[1, 5, 71, 83, 355, 415, 727, 3635, 5893, 29465, 51617, 60341, 258085, 301705, 4284211, 21421055]

約数ペア:

[(1, 21421055), (5, 4284211), (71, 301705), (83, 258085), (355, 60341), (415, 51617), (727, 29465), (3635, 5893)]