18417581

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{997}}^1$

素因数の和:1053

約数の個数: 24

約数和(自身を含む): 23892120

約数和(自身を除く): 5474539

約数列:

[1, 7, 13, 29, 49, 91, 203, 377, 637, 997, 1421, 2639, 6979, 12961, 18473, 28913, 48853, 90727, 202391, 375869, 635089, 1416737, 2631083, 18417581]

約数ペア:

[(1, 18417581), (7, 2631083), (13, 1416737), (29, 635089), (49, 375869), (91, 202391), (203, 90727), (377, 48853), (637, 28913), (997, 18473), (1421, 12961), (2639, 6979)]