13281255

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 25212096

約数和(自身を除く): 11930841

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 73, 117, 195, 219, 311, 365, 585, 657, 933, 949, 1095, 1555, 2799, 2847, 3285, 4043, 4665, 4745, 8541, 12129, 13995, 14235, 20215, 22703, 36387, 42705, 60645, 68109, 113515, 181935, 204327, 295139, 340545, 885417, 1021635, 1475695, 2656251, 4427085, 13281255]

約数ペア:

[(1, 13281255), (3, 4427085), (5, 2656251), (9, 1475695), (13, 1021635), (15, 885417), (39, 340545), (45, 295139), (65, 204327), (73, 181935), (117, 113515), (195, 68109), (219, 60645), (311, 42705), (365, 36387), (585, 22703), (657, 20215), (933, 14235), (949, 13995), (1095, 12129), (1555, 8541), (2799, 4745), (2847, 4665), (3285, 4043)]