212979

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:186

約数の個数: 16

約数和(自身を含む): 315392

約数和(自身を除く): 102413

約数列:

[1, 3, 13, 39, 43, 127, 129, 381, 559, 1651, 1677, 4953, 5461, 16383, 70993, 212979]

約数ペア:

[(1, 212979), (3, 70993), (13, 16383), (39, 5461), (43, 4953), (127, 1677), (129, 1651), (381, 559)]