21340115

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1279}}^1$

素因数の和:1402

約数の個数: 16

約数和(自身を含む): 26542080

約数和(自身を除く): 5201965

約数列:

[1, 5, 47, 71, 235, 355, 1279, 3337, 6395, 16685, 60113, 90809, 300565, 454045, 4268023, 21340115]

約数ペア:

[(1, 21340115), (5, 4268023), (47, 454045), (71, 300565), (235, 90809), (355, 60113), (1279, 16685), (3337, 6395)]