17986085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:473

約数の個数: 32

約数和(自身を含む): 25274592

約数和(自身を除く): 7288507

約数列:

[1, 5, 13, 17, 41, 65, 85, 205, 221, 397, 533, 697, 1105, 1985, 2665, 3485, 5161, 6749, 9061, 16277, 25805, 33745, 45305, 81385, 87737, 211601, 276709, 438685, 1058005, 1383545, 3597217, 17986085]

約数ペア:

[(1, 17986085), (5, 3597217), (13, 1383545), (17, 1058005), (41, 438685), (65, 276709), (85, 211601), (205, 87737), (221, 81385), (397, 45305), (533, 33745), (697, 25805), (1105, 16277), (1985, 9061), (2665, 6749), (3485, 5161)]