18807545

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1709}}^1$

素因数の和:1816

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 4831495

約数列:

[1, 5, 31, 71, 155, 355, 1709, 2201, 8545, 11005, 52979, 121339, 264895, 606695, 3761509, 18807545]

約数ペア:

[(1, 18807545), (5, 3761509), (31, 606695), (71, 264895), (155, 121339), (355, 52979), (1709, 11005), (2201, 8545)]