26947789

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^2\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 18

約数和(自身を含む): 31037678

約数和(自身を除く): 4089889

約数列:

[1, 11, 23, 121, 253, 421, 529, 2783, 4631, 5819, 9683, 50941, 64009, 106513, 222709, 1171643, 2449799, 26947789]

約数ペア:

[(1, 26947789), (11, 2449799), (23, 1171643), (121, 222709), (253, 106513), (421, 64009), (529, 50941), (2783, 9683), (4631, 5819)]