27890191

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{821}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 33458688

約数和(自身を除く): 5568497

約数列:

[1, 7, 23, 161, 211, 821, 1477, 4853, 5747, 18883, 33971, 132181, 173231, 1212617, 3984313, 27890191]

約数ペア:

[(1, 27890191), (7, 3984313), (23, 1212617), (161, 173231), (211, 132181), (821, 33971), (1477, 18883), (4853, 5747)]