13987685

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 18399960

約数和(自身を除く): 4412275

約数列:

[1, 5, 17, 43, 85, 89, 215, 445, 731, 1513, 1849, 3655, 3827, 7565, 9245, 19135, 31433, 65059, 157165, 164561, 325295, 822805, 2797537, 13987685]

約数ペア:

[(1, 13987685), (5, 2797537), (17, 822805), (43, 325295), (85, 164561), (89, 157165), (215, 65059), (445, 31433), (731, 19135), (1513, 9245), (1849, 7565), (3655, 3827)]