21528126

素因数分解:

$2^1\times 3^3\times {\mathrm{398669}}^1$

素因数の和:398680

約数の個数: 16

約数和(自身を含む): 47840400

約数和(自身を除く): 26312274

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 398669, 797338, 1196007, 2392014, 3588021, 7176042, 10764063, 21528126]

約数ペア:

[(1, 21528126), (2, 10764063), (3, 7176042), (6, 3588021), (9, 2392014), (18, 1196007), (27, 797338), (54, 398669)]