21156252

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{135617}}^1$

素因数の和:135637

約数の個数: 24

約数和(自身を含む): 53162256

約数和(自身を除く): 32006004

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 135617, 271234, 406851, 542468, 813702, 1627404, 1763021, 3526042, 5289063, 7052084, 10578126, 21156252]

約数ペア:

[(1, 21156252), (2, 10578126), (3, 7052084), (4, 5289063), (6, 3526042), (12, 1763021), (13, 1627404), (26, 813702), (39, 542468), (52, 406851), (78, 271234), (156, 135617)]