19387908

素因数分解:

$2^2\times 3^2\times {\mathrm{538553}}^1$

素因数の和:538563

約数の個数: 18

約数和(自身を含む): 49008414

約数和(自身を除く): 29620506

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 538553, 1077106, 1615659, 2154212, 3231318, 4846977, 6462636, 9693954, 19387908]

約数ペア:

[(1, 19387908), (2, 9693954), (3, 6462636), (4, 4846977), (6, 3231318), (9, 2154212), (12, 1615659), (18, 1077106), (36, 538553)]