21091595

素因数分解:

$5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{1901}}^1$

素因数の和:2230

約数の個数: 16

約数和(自身を含む): 29032128

約数和(自身を除く): 7940533

約数列:

[1, 5, 7, 35, 317, 1585, 1901, 2219, 9505, 11095, 13307, 66535, 602617, 3013085, 4218319, 21091595]

約数ペア:

[(1, 21091595), (5, 4218319), (7, 3013085), (35, 602617), (317, 66535), (1585, 13307), (1901, 11095), (2219, 9505)]