21308591

素因数分解:

${\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:310

約数の個数: 16

約数和(自身を含む): 22809600

約数和(自身を除く): 1501009

約数列:

[1, 29, 71, 79, 131, 2059, 2291, 3799, 5609, 9301, 10349, 162661, 269729, 300121, 734779, 21308591]

約数ペア:

[(1, 21308591), (29, 734779), (71, 300121), (79, 269729), (131, 162661), (2059, 10349), (2291, 9301), (3799, 5609)]