21521383

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 24093216

約数和(自身を除く): 2571833

約数列:

[1, 13, 37, 101, 443, 481, 1313, 3737, 5759, 16391, 44743, 48581, 213083, 581659, 1655491, 21521383]

約数ペア:

[(1, 21521383), (13, 1655491), (37, 581659), (101, 213083), (443, 48581), (481, 44743), (1313, 16391), (3737, 5759)]