18888051

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1675

約数の個数: 32

約数和(自身を含む): 31736320

約数和(自身を除く): 12848269

約数列:

[1, 3, 7, 13, 21, 39, 43, 91, 129, 273, 301, 559, 903, 1609, 1677, 3913, 4827, 11263, 11739, 20917, 33789, 62751, 69187, 146419, 207561, 439257, 484309, 899431, 1452927, 2698293, 6296017, 18888051]

約数ペア:

[(1, 18888051), (3, 6296017), (7, 2698293), (13, 1452927), (21, 899431), (39, 484309), (43, 439257), (91, 207561), (129, 146419), (273, 69187), (301, 62751), (559, 33789), (903, 20917), (1609, 11739), (1677, 11263), (3913, 4827)]