21745955

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{8069}}^1$

素因数の和:8099

約数の個数: 24

約数和(自身を含む): 33119280

約数和(自身を除く): 11373325

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 8069, 40345, 56483, 88759, 282415, 395381, 443795, 621313, 1976905, 3106565, 4349191, 21745955]

約数ペア:

[(1, 21745955), (5, 4349191), (7, 3106565), (11, 1976905), (35, 621313), (49, 443795), (55, 395381), (77, 282415), (245, 88759), (385, 56483), (539, 40345), (2695, 8069)]