28144161

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{379}}^1$

素因数の和:645

約数の個数: 24

約数和(自身を含む): 42049280

約数和(自身を除く): 13905119

約数列:

[1, 3, 9, 37, 111, 223, 333, 379, 669, 1137, 2007, 3411, 8251, 14023, 24753, 42069, 74259, 84517, 126207, 253551, 760653, 3127129, 9381387, 28144161]

約数ペア:

[(1, 28144161), (3, 9381387), (9, 3127129), (37, 760653), (111, 253551), (223, 126207), (333, 84517), (379, 74259), (669, 42069), (1137, 24753), (2007, 14023), (3411, 8251)]