19616895

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25643}}^1$

素因数の和:25671

約数の個数: 24

約数和(自身を含む): 36004176

約数和(自身を除く): 16387281

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 25643, 76929, 128215, 230787, 384645, 435931, 1153935, 1307793, 2179655, 3923379, 6538965, 19616895]

約数ペア:

[(1, 19616895), (3, 6538965), (5, 3923379), (9, 2179655), (15, 1307793), (17, 1153935), (45, 435931), (51, 384645), (85, 230787), (153, 128215), (255, 76929), (765, 25643)]