21951918

素因数分解:

$2^1\times 3^3\times {\mathrm{406517}}^1$

素因数の和:406528

約数の個数: 16

約数和(自身を含む): 48782160

約数和(自身を除く): 26830242

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 406517, 813034, 1219551, 2439102, 3658653, 7317306, 10975959, 21951918]

約数ペア:

[(1, 21951918), (2, 10975959), (3, 7317306), (6, 3658653), (9, 2439102), (18, 1219551), (27, 813034), (54, 406517)]