21405126

素因数分解:

$2^1\times 3^1\times {\mathrm{1657}}^1\times {\mathrm{2153}}^1$

素因数の和:3815

約数の個数: 16

約数和(自身を含む): 42855984

約数和(自身を除く): 21450858

約数列:

[1, 2, 3, 6, 1657, 2153, 3314, 4306, 4971, 6459, 9942, 12918, 3567521, 7135042, 10702563, 21405126]

約数ペア:

[(1, 21405126), (2, 10702563), (3, 7135042), (6, 3567521), (1657, 12918), (2153, 9942), (3314, 6459), (4306, 4971)]