28149513

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{6011}}^1$

素因数の和:6244

約数の個数: 16

約数和(自身を含む): 43094016

約数和(自身を除く): 14944503

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4683, 6011, 18033, 42077, 126231, 1340453, 4021359, 9383171, 28149513]

約数ペア:

[(1, 28149513), (3, 9383171), (7, 4021359), (21, 1340453), (223, 126231), (669, 42077), (1561, 18033), (4683, 6011)]