21710275

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2221}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 29757024

約数和(自身を除く): 8046749

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 2221, 9775, 11105, 37757, 51083, 55525, 188785, 255415, 868411, 943925, 1277075, 4342055, 21710275]

約数ペア:

[(1, 21710275), (5, 4342055), (17, 1277075), (23, 943925), (25, 868411), (85, 255415), (115, 188785), (391, 55525), (425, 51083), (575, 37757), (1955, 11105), (2221, 9775)]