28688242

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{12911}}^1$

素因数の和:13025

約数の個数: 16

約数和(自身を含む): 47412864

約数和(自身を除く): 18724622

約数列:

[1, 2, 11, 22, 101, 202, 1111, 2222, 12911, 25822, 142021, 284042, 1304011, 2608022, 14344121, 28688242]

約数ペア:

[(1, 28688242), (2, 14344121), (11, 2608022), (22, 1304011), (101, 284042), (202, 142021), (1111, 25822), (2222, 12911)]