18773289

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{4373}}^1$

素因数の和:4438

約数の個数: 20

約数和(自身を含む): 28579716

約数和(自身を除く): 9806427

約数列:

[1, 3, 9, 27, 53, 81, 159, 477, 1431, 4293, 4373, 13119, 39357, 118071, 231769, 354213, 695307, 2085921, 6257763, 18773289]

約数ペア:

[(1, 18773289), (3, 6257763), (9, 2085921), (27, 695307), (53, 354213), (81, 231769), (159, 118071), (477, 39357), (1431, 13119), (4293, 4373)]