207980217

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{54631}}^1$

素因数の和:54690

約数の個数: 20

約数和(自身を含む): 317302656

約数和(自身を除く): 109322439

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 54631, 163893, 491679, 1475037, 2567657, 4425111, 7702971, 23108913, 69326739, 207980217]

約数ペア:

[(1, 207980217), (3, 69326739), (9, 23108913), (27, 7702971), (47, 4425111), (81, 2567657), (141, 1475037), (423, 491679), (1269, 163893), (3807, 54631)]