18641315

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{6917}}^1$

素因数の和:6947

約数の個数: 24

約数和(自身を含む): 28391472

約数和(自身を除く): 9750157

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 245, 385, 539, 2695, 6917, 34585, 48419, 76087, 242095, 338933, 380435, 532609, 1694665, 2663045, 3728263, 18641315]

約数ペア:

[(1, 18641315), (5, 3728263), (7, 2663045), (11, 1694665), (35, 532609), (49, 380435), (55, 338933), (77, 242095), (245, 76087), (385, 48419), (539, 34585), (2695, 6917)]