16977843

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{877}}^1$

素因数の和:1128

約数の個数: 20

約数和(自身を含む): 25497120

約数和(自身を除く): 8519277

約数列:

[1, 3, 9, 27, 81, 239, 717, 877, 2151, 2631, 6453, 7893, 19359, 23679, 71037, 209603, 628809, 1886427, 5659281, 16977843]

約数ペア:

[(1, 16977843), (3, 5659281), (9, 1886427), (27, 628809), (81, 209603), (239, 71037), (717, 23679), (877, 19359), (2151, 7893), (2631, 6453)]