20147743

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1123}}^1$

素因数の和:1374

約数の個数: 16

約数和(自身を含む): 25249536

約数和(自身を除く): 5101793

約数列:

[1, 7, 11, 77, 233, 1123, 1631, 2563, 7861, 12353, 17941, 86471, 261659, 1831613, 2878249, 20147743]

約数ペア:

[(1, 20147743), (7, 2878249), (11, 1831613), (77, 261659), (233, 86471), (1123, 17941), (1631, 12353), (2563, 7861)]