191431431

素因数分解:

$3^4\times {\mathrm{557}}^1\times {\mathrm{4243}}^1$

素因数の和:4812

約数の個数: 20

約数和(自身を含む): 286546392

約数和(自身を除く): 95114961

約数列:

[1, 3, 9, 27, 81, 557, 1671, 4243, 5013, 12729, 15039, 38187, 45117, 114561, 343683, 2363351, 7090053, 21270159, 63810477, 191431431]

約数ペア:

[(1, 191431431), (3, 63810477), (9, 21270159), (27, 7090053), (81, 2363351), (557, 343683), (1671, 114561), (4243, 45117), (5013, 38187), (12729, 15039)]