28186137

素因数分解:

$3^4\times 7^1\times {\mathrm{49711}}^1$

素因数の和:49730

約数の個数: 20

約数和(自身を含む): 48121216

約数和(自身を除く): 19935079

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49711, 149133, 347977, 447399, 1043931, 1342197, 3131793, 4026591, 9395379, 28186137]

約数ペア:

[(1, 28186137), (3, 9395379), (7, 4026591), (9, 3131793), (21, 1342197), (27, 1043931), (63, 447399), (81, 347977), (189, 149133), (567, 49711)]