19938990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{664633}}^1$

素因数の和:664643

約数の個数: 16

約数和(自身を含む): 47853648

約数和(自身を除く): 27914658

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 664633, 1329266, 1993899, 3323165, 3987798, 6646330, 9969495, 19938990]

約数ペア:

[(1, 19938990), (2, 9969495), (3, 6646330), (5, 3987798), (6, 3323165), (10, 1993899), (15, 1329266), (30, 664633)]