199412941

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{128903}}^1$

素因数の和:128940

約数の個数: 16

約数和(自身を含む): 259870464

約数和(自身を除く): 60457523

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 128903, 902321, 1675739, 2191351, 11730173, 15339457, 28487563, 199412941]

約数ペア:

[(1, 199412941), (7, 28487563), (13, 15339457), (17, 11730173), (91, 2191351), (119, 1675739), (221, 902321), (1547, 128903)]