28356741

素因数分解:

$3^2\times 7^2\times {\mathrm{64301}}^1$

素因数の和:64321

約数の個数: 18

約数和(自身を含む): 47647782

約数和(自身を除く): 19291041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 64301, 192903, 450107, 578709, 1350321, 3150749, 4050963, 9452247, 28356741]

約数ペア:

[(1, 28356741), (3, 9452247), (7, 4050963), (9, 3150749), (21, 1350321), (49, 578709), (63, 450107), (147, 192903), (441, 64301)]