21168105

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{449}}^2$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 38793792

約数和(自身を除く): 17625687

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 449, 1347, 2245, 3143, 6735, 9429, 15715, 47145, 201601, 604803, 1008005, 1411207, 3024015, 4233621, 7056035, 21168105]

約数ペア:

[(1, 21168105), (3, 7056035), (5, 4233621), (7, 3024015), (15, 1411207), (21, 1008005), (35, 604803), (105, 201601), (449, 47145), (1347, 15715), (2245, 9429), (3143, 6735)]