20187345

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12347}}^1$

素因数の和:12464

約数の個数: 16

約数和(自身を含む): 32598720

約数和(自身を除く): 12411375

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12347, 37041, 61735, 185205, 1345823, 4037469, 6729115, 20187345]

約数ペア:

[(1, 20187345), (3, 6729115), (5, 4037469), (15, 1345823), (109, 185205), (327, 61735), (545, 37041), (1635, 12347)]