18290385

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23909}}^1$

素因数の和:23937

約数の個数: 24

約数和(自身を含む): 33569640

約数和(自身を除く): 15279255

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 23909, 71727, 119545, 215181, 358635, 406453, 1075905, 1219359, 2032265, 3658077, 6096795, 18290385]

約数ペア:

[(1, 18290385), (3, 6096795), (5, 3658077), (9, 2032265), (15, 1219359), (17, 1075905), (45, 406453), (51, 358635), (85, 215181), (153, 119545), (255, 71727), (765, 23909)]