21006995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1\times {\mathrm{433}}^1$

素因数の和:782

約数の個数: 16

約数和(自身を含む): 26164992

約数和(自身を除く): 5157997

約数列:

[1, 5, 31, 155, 313, 433, 1565, 2165, 9703, 13423, 48515, 67115, 135529, 677645, 4201399, 21006995]

約数ペア:

[(1, 21006995), (5, 4201399), (31, 677645), (155, 135529), (313, 67115), (433, 48515), (1565, 13423), (2165, 9703)]