28917567

素因数分解:

$3^4\times 7^1\times {\mathrm{51001}}^1$

素因数の和:51020

約数の個数: 20

約数和(自身を含む): 49369936

約数和(自身を除く): 20452369

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 51001, 153003, 357007, 459009, 1071021, 1377027, 3213063, 4131081, 9639189, 28917567]

約数ペア:

[(1, 28917567), (3, 9639189), (7, 4131081), (9, 3213063), (21, 1377027), (27, 1071021), (63, 459009), (81, 357007), (189, 153003), (567, 51001)]