28005131

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{821}}^1$

素因数の和:1282

約数の個数: 16

約数和(自身を含む): 35036928

約数和(自身を除く): 7031797

約数列:

[1, 7, 11, 77, 443, 821, 3101, 4873, 5747, 9031, 34111, 63217, 363703, 2545921, 4000733, 28005131]

約数ペア:

[(1, 28005131), (7, 4000733), (11, 2545921), (77, 363703), (443, 63217), (821, 34111), (3101, 9031), (4873, 5747)]