18541411

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{613}}^1$

素因数の和:798

約数の個数: 16

約数和(自身を含む): 22104000

約数和(自身を除く): 3562589

約数列:

[1, 7, 29, 149, 203, 613, 1043, 4291, 4321, 17777, 30247, 91337, 124439, 639359, 2648773, 18541411]

約数ペア:

[(1, 18541411), (7, 2648773), (29, 639359), (149, 124439), (203, 91337), (613, 30247), (1043, 17777), (4291, 4321)]