18121521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{5437}}^1$

素因数の和:5552

約数の個数: 16

約数和(自身を含む): 26624448

約数和(自身を除く): 8502927

約数列:

[1, 3, 11, 33, 101, 303, 1111, 3333, 5437, 16311, 59807, 179421, 549137, 1647411, 6040507, 18121521]

約数ペア:

[(1, 18121521), (3, 6040507), (11, 1647411), (33, 549137), (101, 179421), (303, 59807), (1111, 16311), (3333, 5437)]